Search Results

Wide range of steel and brass inserts. Self tapping, self cutting threaded inserts, through tapped metric OD inserts and expansion inserts - large stocks or manufactured to order. 1/71 NON STANDARD FASTENERS & TURNED COMPONENTS Technifast’s manufacturing division is dedicated to producing diverse and complex turned parts. We have a proven reputation in delivering high-quality fasteners manufactured to a customers exact specification or drawing at a competitive price, with short lead times. This ethos is reflected in the number of customers who return to Technifast to take advantage of our flexibility and adaptability when sourcing a fastener solution that can not be purchased 'off the shelf'. Our team are also experienced in reverse engineering and can manufacture components from a sample or original part supplied by the customer. Over the last three decades we have invested considerably in our machining capabilities and are very proud of our excellent reputation for meeting customer requirements on time and on budget, whether a high-volume run of parts or a low-volume order such as prototype manufacturing. Most of our special pins and turned parts are manufactured using CNC machines to obtain high precision and excellent surface finish. We specialise in steel, stainless steel and brass and are ready to help with your custom turned parts made in Northamptonshire, United Kingdom Technifast is an ISO:9001 registered company. This underpins our reliability as we continually monitor and manage quality across all our operations. We offer free, no obligation quotes on all our manufacturing projects, so feel free to contact our team. Our extensive in-house manufacturing capabilities include: Very large volume runs of small diameter dowels (up to 5mm diameter) Specialists in the manufacture of bespoke precision components in 303 / 304 / 316 Grade Stainless Steel Machining capabilities up to 32mm diameter (or imperial equivalent) Experience across a broad range of industries including automotive, aerospace, medical & marine One-off prototype parts to large batch production Our slides above shows just a few examples of parts we've produced over the years. We're always looking for the next challenge! Please contact us if you have any bespoke engineered component requirements. CONTACT US RFQ Item 1 RFQ Item 2 RFQ Item 3 RFQ Item 4 Upload File Upload supported file (Max 15MB) I agree to the terms & conditions I want to subscribe to the newsletter. Submit Form Thanks for contacting Technifast! We'll get back to you as quickly as possible View our other products available

Wide range of steel and brass inserts. Self tapping, self cutting threaded inserts, through tapped metric OD inserts and expansion inserts - large stocks or manufactured to order. Dowels, Grooved & Taper Pins Pins Inserts Engineers Keys Spacers Other Products SELF TAPPING INSERTS INS 121 INS 127 INS 125 INS 300 STB Type PTT Type (Thread-Reducing) STT Type HEAT/ULTRASONIC INSERTS EXPANSION INSERTS THREADED INSERTS Technifast provide a varied range of inserts, which are frequently categorised by the method of insertion. We have a vast range of self tapping inserts, designed to give more strength, particularly where composite materials are used. Our through tapped metric OD inserts (thread reducers / thread repair) are ideal for use on pre-tapped holes which make them suitable for application with most materials and have a standard through-tapped metric internal with metric external threads. We also stock self tapping inserts with a high resistance to pull-out, making them ideal for use in plastics, wood and non-ferrous metals. Our ultrasonic or heat inserts, which are for use in thermoplastic materials and are stocked in brass. Finally, the expansion inserts are an ideal solution when a durable thread is required, but the high pull-out resistance of a self-tapping insert is not essential. For non-standard threaded inserts, please contact us with your requirements Self Tapping Inserts Series 121 / 125 / 127 / 300 Series STB Series STT Series PTT Expansion Inserts Heat/Ultrasonic Inserts Hole Preparation Guide CONTACT US RFQ Item 1 RFQ Item 2 RFQ Item 3 RFQ Item 4 Upload File Upload supported file (Max 15MB) I agree to the terms & conditions I want to subscribe to the newsletter. Submit Form Thanks for contacting Technifast! We'll get back to you as quickly as possible View our other products available

Technifast coiled & slotted spring pins, cotter pins, R-clips, linch pins, shaft pins, clevis pins, grooved pins, dowels & taper pins. Dowels, Grooved & Taper Pins Pins Inserts Engineers Keys Spacers Other Products COILED PINS SLOTTED PINS CLEVIS PINS COTTER PINS RETAINING PINS LINCH PINS SHAFT LOCKING PINS HAMMER DRIVE PINS PINS Technifast supply a large selection of engineering pins for different applications. The range includes spring pins, cotter pins, R-clips, linch pins and clevis pins. The range of pins covers several standards and materials, including steel, stainless steel (301/302/303/304/316), mild steel and brass. We hold large stocks of most of our pins, and will quote quickly on non-stocked, standard items. If you have a special requirement, we have the capabilities to manufacture pins to a customer drawing or specification. Contact us for a free quote. Coiled Pin Data Sheet Slotted Pin Data Sheet Clevis Pin Data Sheet Cotter Pin Data Sheet Retaining Pin Data Sheet Linch Pin Data Sheet Shaft Locking Pins Data Sheet Hammer Drive Pins Data Sheet Pin Economics CONTACT US RFQ Item 1 RFQ Item 2 RFQ Item 3 RFQ Item 4 Upload File Upload supported file (Max 15MB) I agree to the terms & conditions I want to subscribe to the newsletter. Submit Form Thanks for contacting Technifast! We'll get back to you as quickly as possible View our other products available

Technifast distribute and manufacture engineers keys and machine keys, including round and square headed parallel keys, woodruff keys and gib head keys, available in metric and inch sizes. Read more on the advantages of engineers keys. Dowels, Grooved & Taper Pins Pins Inserts Engineers Keys Spacers Other Products DIN 6885 DIN 6888 DIN 6887 ENGINEERS KEYS Technifast provide a varied range of keys including round end, square end and one round/one square end parallel keys (also known as feather keys), woodruff keys and gib head keys which are available in metric and inch sizes. We also supply key steel in either 300mm or 1000mm lengths in C45k material and 316 (A4) stainless steel. In addition to our standard key ranges, our manufacturing division can produce keys with special dimensions on tolerances, keys with chamfered edges, tapped holes or cut-outs. Contact us for more information. Parallel Keys Woodruff Keys Gib Head Keys CONTACT US RFQ Item 1 RFQ Item 2 RFQ Item 3 RFQ Item 4 Upload File Upload supported file (Max 15MB) I agree to the terms & conditions I want to subscribe to the newsletter. Submit Form Thanks for contacting Technifast! We'll get back to you as quickly as possible View our other products available

Blind captive nuts are produced by Technifast with white or black nylon cages and brass or stainless steel inserts in sizes from M3 to M6. We can also supply blind nuts in many imperial thread sizes. Dowels, Grooved & Taper Pins Pins Inserts Engineers Keys Spacers Other Products BLIND CAPTIVE NUT KNURL NUT OTHER PRODUCTS We also stock other products that don't fall into a specific category range listed. If you're not quite sure what a particular part might be know as, please view our gallery , where you can click on the required item and it will take you to the relevant product page. Alternative, please don't hesitate to contact our sales team who will help identify your needs. Blind Captive Nuts Data Sheet CONTACT US RFQ Item 1 RFQ Item 2 RFQ Item 3 RFQ Item 4 Upload File Upload supported file (Max 15MB) I agree to the terms & conditions I want to subscribe to the newsletter. Submit Form Thanks for contacting Technifast! We'll get back to you as quickly as possible View our other products available

Technifast supply spacers & standoffs in both clearance and threaded form. We also provide hexagonal studding connectors in thread sizes M5 to M36, threaded full length and hold stock of the majority of the range. Dowels, Grooved & Taper Pins Pins Inserts Engineers Keys Spacers Other Products ROLLED SPACERS TURNED SPACERS THREADED SPACERS (FEMALE) THREADED SPACERS (MALE) STUDDING CONNECTORS CLEARANCE & THREADED SPACERS Technifast offer a standard range of spacers in both clearance and threaded form. Spacers are normally used to allow two parts of an assembly to be fastened together at a controlled distance from each other. We stock a wide range of mild steel, mild steel zinc-plated and stainless steel clearance spacers. The portfolio includes closed-seam rolled spacers, turned spacers - plus we also provide moulded spacers, which are available in nylon. Technifast’s threaded spacer and standoff ranges form integral components in a wide variety of assembly applications, spanning industries such as automotive, aviation and most commonly, electronic hardware. Threaded spacers and standoffs are frequently used to create a specified space between two objects and to properly position parts within an assembly. The threaded spacers and standoffs supplied by Technifast are available with a rounded or hex exterior, which allows for easy tightening by hand or with a wrench. The majority of our standard range is stocked in our warehouse facility, ensuring we can meet the demands of customers quickly and cost-effectively. Standard nominal thread sizes range from M4 through to M12 in the round threaded spacer, with outside diameters from 7mm to 15mm. The size range of standard hexagonal threaded spacers spans from M2 to M6 with outside diameters from 4mm to 10mm. Threaded spacers and standoffs are available in three configurations: male/female, female/female and male/male (made to customer specification). We also provide hexagonal studding connectors in thread sizes M5 to M36, threaded full length and PCB Spacers used in electronic circuit boards. We hold stock on the majority of the spacers, pillars and connectors we offer or can manufacture them to a customer drawing or specification. Contact us now to discuss your requirements Clearance Spacers Data Sheet Threaded Spacers Data Sheet CONTACT US RFQ Item 1 RFQ Item 2 RFQ Item 3 RFQ Item 4 Upload File Upload supported file (Max 15MB) I agree to the terms & conditions I want to subscribe to the newsletter. Submit Form Thanks for contacting Technifast! We'll get back to you as quickly as possible View our other products available

Our FAQs answer some of the common questions we are asked: What's the minimum order? What's the difference between a slotted & coiled pin? Should I choose A2 or A4 stainless steel? What are DIN and ISO standards? What are the differences between interference / transition / clearance fits? FAQs - Just a few of the frequently asked questions we get a Technifast We are always happy to provide practical solutions to your fastener and turned components enquiries. Your questions are often the source of some very interesting FAQs and we've compiled details of some of the most commonly asked questions. If you can't find the answer you are looking for below, please email the team at sales@technifast.co.uk What are the different types of spring pins ? Although there are different names within the industry, there are two types of spring pins; Slotted or Coiled . Slotted Spring Pins are 'c' shaped with a slot along the length of the pin. Other names that are used for Slotted Spring Pins are 'Split Spring Pins', 'Spring Dowel Pins', 'Bissell Pins, 'Selloc Pins', 'Tension Pins', 'Spring Tension Pins', 'Groverlock Pins', 'Roll Pins' . Coiled Spring Pins are 2-1/4 coils of spring or stainless steel (looks like a swiss roll), and can also be known as 'Coiled Pins', 'Roll Pins', 'Spiral Pins', 'Scroll Pins', 'Spring Tension Pins' If Technifast is asked for a 'Spring Pin', we will ask if you require the slotted or coiled type to ensure you receive the correct product you're looking for. What is Technifast's Minimum Order? For UK Mainland orders, there is a minimum line value of £2.00, with a minimum order value of £10.00, excluding VAT. All other countries, price is on application. Properties Of Austenitic Stainless Steel From the smallest precision component to the largest skyscraper, stainless steel is an integral part of modern life. Stainless steel is often the material of choice for industrial fasteners, as it offers a good balance of corrosion resistance and durability. The term stainless steel is given to a wide range of corrosion-resistant steel alloys. The fundamental component of a stainless steel alloy is a minimum chromium content of 10.5%, with varying quantities of carbon, silicon and manganese. Other elements such as nickel, copper and molybdenum can also be added to change the properties of the material. The most widely used type of stainless steel is Austenitic steel. It contains high levels of chromium and nickel, and lower levels of carbon. This nickel-based stainless steel is classed as the 300 Series. Technifast are specialists in the manufacture of precision components using the popular Grade 304. We also have vast experience with Grade 316, which has added molybdenum to further improve its corrosion resistance, making it ideal for marine environments or surgical equipment. The 300 Series of stainless steel can be characteristically defined by its weldability and formability. Grade 304 is the most weldable of the stainless steel family, and although care should be taken to avoid hot cracking it is compatible with all welding processes. If the application demands good formability, then Grade 304 is the practical choice, being more malleable than other types of stainless steel. By understanding the benefits of Austenitic stainless steel, you can make an informed choice on the best type of material to suit your individual application. What Are The Benefits Of Zinc Plating? Zinc plating is an established process suited to hardened steel base materials. It offers added protection to steel components against corrosion. The zinc creates a barrier acting as a thin, sacrificial coating, helping to prevent corrosion from reaching the steel surface of the component beneath. Zinc is a widely available material and depending on the application and quantity, it can be a cost-effective option for businesses on a budget when used as an alternative to stainless steel. Stainless steel is generally more expensive than a zinc plated option, due to the chromium content of stainless steel. However, the benefits of a cheaper alternative would need to be considered against the strength and corrosion resistance of stainless steel. Aesthetically, zinc plating produces a bright finish and superior appearance to an uncoated steel component - which is an important factor if the fastener is going to be visible within the intended application. Technifast work with respected and established plating and finishing partners to provide a high-quality service, which we offer as part of our manufacturing service. We do not offer these services on parts that have not been manufactured or supplied by Technifast. Should I Choose A2 Or A4 Stainless Steel Material? The grade of stainless steel used for a component will be determined by the environment the fastener will be exposed to. Selecting the correct grade of stainless steel ensures the fasteners will be of a high-quality and perform in the application for which they are intended: A2 Stainless Steel is a commonly used grade, as it’s very versatile and offers strong abrasion resistance, plus a good resistance to corrosion and high-hardness levels. A2 stainless steel is from the austenitic family, containing 18% chromium and 8% nickel. A4 Stainless Steel is the best option when the component is to be used in a harsher environment. The addition of molybdenum to its composition provides the A4 grade with a greater level of corrosion resistance, making it suited for use in salt water or certain chemical solutions. Many fasteners used in the medical industry are manufactured from A4 stainless steel. Stainless Steel A2 is typically a lower-cost option, but the additional cost of stainless steel A4 is a good investment, due to the fact it is very resistant to tarnishing and corrosion, making it a long-lasting material to use. What Are DIN And ISO Standards? DIN is the acronym for ‘Deutsches Institut für Normung’, which is the ‘German institute for standardisation’ who developed detailed technical standards for the engineering industry, amongst many other industries. With reference to fasteners, DIN number indicates the that the part conforms to a specific metric standard. The International Standards Organisation (ISO) standard has evolved to supersede the DIN standard, which was historically the predominant metric fastener system referred to. The intention of the ISO standard was to standardise the technical specifications worldwide to simplify the system and aid the flow of trade via a universally recognised standard. In practice, DIN and ISO standards are still both commonly used when specifying fasteners and both standards are recognised by Technifast when our customers specify the fasteners they require. What Are The Differences Between Interference / Transition / Clearance Fits? Engineering fits are defined by the allowance of tightness between two mating parts - usually a shaft and a hole - of an assembly. The type of fit used is identified by the relative movement required between the components to allow the parts to perform their specific function. Clearance Fit: If the assembly requires the components to move freely in relation to each other, this is termed as a clearance fit. In this type of engineering fit, the maximum permitted shaft diameter is less than the diameter of the hole. When using this type of fit, the clearance value is always a positive number. Interference Fit: With an interference fit, the components of the assembly mate together tightly, so that relative movement is not possible. The minimum diameter allowance of the pin is always greater than the maximum diameter of the hole, meaning an interference fit is mainly used as a permanent assembly for parts which rely on rigidity and alignment. Transition Fit: A transition fit sits between a clearance and interference fit and can have a positive or negative clearance between the mating parts. This fit is used when an accurate location is required, but a small amount of either clearance is acceptable.

Technifast's have a proven track record in producing high-quality, precision engineered fasteners and components. View our gallery of dowels, keys, inserts and pins produced to customer drawing or specifications. Dowels, Grooved & Taper Pins Pins Inserts Engineers Keys Spacers Other Products TECHNIFAST GALLERY Just a few of the various products we can supply. If you would like more information on any of our products, visit our product pages or contact us with your request . If you're not sure what the item you require is known as, but can see it below, click on the photo and it will take you to the correct product page. Products Overview All Products Selection of standard products available from Technifast Parallel Keys to DIN 6885 Parallel Keys, round both ends to DIN 6885 in C45 keysteel or A4 stainless Keysteel Keysteel to DIN 6880 in 12" or 1 metre lengths. Available in C45 keysteel or A4 stainless Spring Pins, 1 Turned Spacers Turned Spacers in Brass, Mild Steel (Zinc Plated Finish if required), Stainless A2 or A4 Groove Pins to DIN 1472 Grooved Pins to DIN 1472 in mild steel or stainless Dowel Pin H & G Dowel Pins to DIN 6325 in Hardened & Ground Steel Split Cotter Pins to DIN 94 Cotter Pins to DIN 94 in mild steel, zinc plated or stainless A4 Threaded Pin with Stop4 Coiled Pins Coiled Spring Pins to ISO 8748 / ISO 8750 in Spring Carbon Steel or A2 Stainless Threaded Insert2 Coiled Spring Pins Coiled Spring Pins to ISO 8748 / ISO 8750 Carbon Steel Stainless A2 Woodruff Key Woodruff Keys to DIN 6888 or BS 46, available in C45 keysteel as standard and in stainless to order Clearance Spacer Turned, Clearance Spacers in Mild Steel (self colour or zinc plated), Stainless A2 or A4 and Brass Hex Threaded Spacers Hexagonal Threaded Spacers, Male/Female or Female/Female in Steel Zinc Plated, Brass Nickel Plated or Stainless (to order) Turned Spacer Turned / Clearance Spacers in mild steel, zinc plated. Can also offer in stainless or brass Shaft Locking Pins Turned Spacers Turned Spacers, available up to 32mm OD in mild steel, stainless steel or brass Stepped Spacers Special Turned Parts to customer specification Turned Spacer Turned or Clearance Spacers Threaded Spacers Hexagonal Threaded Spacers, Male/Female Threaded Spacer, Male/Female Hexagonal Male Threaded Pillar or Spacers in Steel Zinc Plated, Brass Nickel Plated or Stainless (to order) Threaded Spacer, Female, 1 Threaded Spacer Round, 4 threaded spacer fl Threaded Pin2 Turned Spacer Turned / Clearance Spacers, can be in mild steel, stainless steel or brass Taper Pins Stainless Parts Threaded Taper Pin Series 300 Taper Pin, Split, 5 studding connector Studding Connector, 1 Stop Pin5 Series 127 WEB Stepped Pin, 6 Spacers (2) Engineers Keys Parallel Keys to DIN 6885, Woodruff Keys to DIN 6888 Gib Head Keys to DIN 6887 C45 keysteel or A4 stainless Slotted Pins (2) Self Tapping Inserts Retaining Pin, 1 rolled spacer std r-clip, single coil 4mm Pin with Stop2 Turned Spacers Turned Spacers, available in mild steel, stainless steel or brass Pin with Radius Ends, 3 Inserts, 1 Keys Edited Pin with Grooves6 Pin with End Knurl5 Pin with Circlip Grooves5 Pin with countersink holes Pin with Chamfered Grooves2 Pin with Centre Knurl6 Pin with Centre Cut Out11 Pin with Air Release Flat8 INS 300 with Holes4 Parallel Key Multi-Hole Pin12 linch pin Knurl Pin4 Keysteel 2, 1 Inserts Inserts 02, 1 insert ins 02 m4 brass short INS125 INS121 INS 01&02 Headed Pin5 Headed Insert4 Half Taper Pin3 Grooved Pins Grooved Pins in DIN 1471, 1472, 1473, 1474, 1475, mild steel and stainless steel grooved pin dw 1472 3x16 stainless gib-head key Extractable Dowel, Male,Male4 Extractable Dowel Extractable Dowel with Slot6 Engineers Keys Engineering Pins, 1 drive pin hp210 4x10 Dowel with Holes12 INS 300,4 Dowel Pin Door Knob9 DIN 7978, 2 DIN 7977, 3 Diamond Pins3 Diamond Pin16 Diamond Pin, Double Ended5 Cotter Pin, 1 Coiled Pins 750x400 coiled pins Coiled Pin Clevis Pin5 Inserts 81 & 82, 1 Clevis Pin, 1 Clearance Spacers (2) Clearance Spacer, Spirol BLIND NUTS 750x400 Agricultural Pins, 1 20191126_141646_resized 20180508_113525_resized 20170928_125449 20170928_125320 20160216_134755 Parts made to customer specification Hex Head, Threaded Pins

More details about the materials used in Technifast products Datasheets Material Specifications Pin Economics Plating & Finishing Recommended Hole Sizes Shear Strengths Standards Tolerances MATERIAL SPECIFICATIONS Standard materials used in Technifast products are as follows : - CS 70 and CK67 Carbon steel which, after hardening and tempering, has excellent strength and fatigue resistance which makes them ideal for spring pins, both coiled and slotted. AISI 304 and WS 1.4310 Austenitic stainless steel, unhardenable and with low magnetic permeability, used for both coiled and slotted spring pins where corrosion resistance is needed. WS 1.3505 / C60Pb Hardenable high carbon steel with chrome content used for through-hardened dowels in the metric range. WS 1.4305 and 303S31 Unhardenable austenitic stainless steel with low magnetic permeability used for dowels, grooved pins, taper pins and threaded spacers where corrosion resistant properties are required. Silver Steel to BS 1407 A through-hardenable high carbon steel used for dowels and small turned parts. WS 1.4571 and 316S11 (A4) Unhardenable austenitic stainless steel with low magnetic permeability, but with very high corrosion resistance used for dowels. 431S29 (C1) A hardenable martensitic stainless steel used for dowels requiring the maximum shear strength, combined with corrosion resistance. WS 1.0718 (9SMnPb28) Leaded mild steel used for dowels, taper pins and grooved pins. S300 Pb Leaded mild steel used for threaded spacers. AISI 1010 Low carbon steel used for roll-formed clearance spacers. WS 1.0503 (C45k) Standard Key steel with a minimum tensile strength of 60 Kg/mm². Chemical Compositions Should you require any further information, please do not hesitate to contact us on +44 1536 461140 or sales@technifast.co.uk .

Information about the different finishes available for Technifast products only Datasheets Material Specifications Pin Economics Plating & Finishing Recommended Hole Sizes Shear Strengths Standards Tolerances PLATING & FINISHING Technifast can manufacture precision fasteners and components such as pins, dowels, spacers, inserts and engineers keys with a range of coatings, plating and finishes. Depending on the application, components can be plated to improve resistance to corrosion, provide a uniformed surface or made decorative. Read on to discover some of the coating techniques used on precision engineered parts. We work with respected and established plating and finishing partners to provide a high-quality service, which we offer as part of our manufacturing service. ** Please note, these services are outsourced and can only be offered in conjunction with parts supplied by Technifast ** Zinc Plating Zinc plating is a process which is well-suited to hardened steel base materials. It provides a very bright finish and usually incorporates a clear chromate treatment to increase corrosion resistance. Zinc plating is an established technique for small, precision engineered fasteners. Due to the continued and unpredictable risk of failure, customers should be aware of the risk of subjecting high tensile fasteners to an electrolytic process, and to avoid this risk wherever possible. The responsibility for assessing whether electro-zinc plated high tensile fasteners should be used in a particular application remains with the end-user, in liaison with the design authority. Nickel Plating Nickel plating is a cost-effective and commonly recognised technique in the manufacture of specialist components. It is used to improve the hardness of the base material, whilst making it more resistant to both wear and corrosion. Zinc Nickel Plating Zinc Nickel plating is one of the most popular plating methods, providing a finish which is suitable for steel and brass components. It is widely used in the fastener industry to offer improved protection from corrosion and as a more environmentally-friendly alternative to cadmium plating. Electroless Nickel Plating This is a very common form of electroless coating. An electroless nickel finish offers outstanding corrosion protection combined with a natural lubricity. This results in a surface finish that is uniform across the high-precision components that Technifast manufacture and supply. Stainless Steel Passivation A stainless steel base material is naturally resistant to corrosion. However, stainless steel is not completely unaffected by rust, and the passivation process can improve the resilience to oxidisation by eradicating the free iron from the stainless steel to further help protect against corrosion. Decorative Chrome Plating This is a technique that can also be referred to as nickel-chrome plating and is used to give an attractive finish to a variety of applications. It is popular for components which will be ‘on show’, but it is also hard wearing and stain resistant. Geomet® 500 Coating Geomet® 500 was formed specifically with integral lubricant for coating fasteners, to assist in assembly and to give a consistent tightening performance. Fasteners coated with Geomet® 500 have a silver/grey metallic appearance. They are also electrically conductive, making them a suitable choice for most applications. Should you require any further information, please do not hesitate to contact us on +44 1536 461140 or sales@technifast.co.uk .

Our technical datasheets have been compiled to give an overview of each of the fasteners we supply and manufacture. All our datasheets for pins, keys, spacers, dowels and inserts are printable and downloadable from our website Datasheets Material Specifications Pin Economics Plating & Finishing Recommended Hole Sizes Shear Strengths Standards Tolerances DATASHEETS Our technical datasheets have been compiled to give an overview of each of the fasteners we supply and manufacture. Please select a datasheet from the list below to print or download the document. Blind Captive Nuts Clearance Spacers Clevis Pins Coiled Pins Cotter Pins Custom Dowel Pins Dowel Pins Expansion Inserts Gib Head Keys Grooved Pins Hammer Drive Pins Linch Pins Manufacturing Capabilities Parallel Keys Retaining Pins Shaft Locking Pins Slotted Pins Taper Pins Threaded Inserts - 1 Threaded Inserts - 2 Threaded Spacers Ultrasonic Inserts Woodruff Keys Full Catalogue Should you require any further information, please do not hesitate to contact us on +44 1536 461140 or sales@technifast.co.uk .

Every application is different, but here we show a little bit of information that might help Datasheets Material Specifications Pin Economics Plating & Finishing Recommended Hole Sizes Shear Strengths Standards Tolerances PIN ECONOMICS Every application is individual, but the following information acts as a guide on choosing the correct pin for your requirements. The pin must perform its required function. Economic factors only come into play in choosing the pin that meets the technical needs of the particular application. Typical considerations include: Where the maximum possible resistance to static shear loads is required, then a through hardened solid steel dowel has the most strength. If space permits, a larger diameter of other types of pin can be considered. Remember, a small increase in the diameter of the pin makes a large difference to the strength. Where the maximum possible resistance to vibration is needed, avoid spring pins and use either grooved pins to DIN 1473 (full length parallel grooves) or a hardened dowel fitted to the tightest possible tolerances. For resistance to corrosion, stainless is preferred to zinc or other plated finishes, except where the problem is galvanic corrosion between the pin and the components into which the pin is to be inserted. Plated finishes offer limited resistance to atmospheric, marine or chemical corrosion as the plated surface is liable to damage during insertion and in the case of spring pins and cotter pins the inside surfaces are not fully protected. For most commercial purposes, A1/A2 grades of austenitic stainless (303, 304) are sufficient to give good protection and are commercially available in most types of pin. For marine or chemical resistance, A4 grades such as 316 are essential, but this limits the choice of pin as A4 is not readily available in all types of pin. The shear strength of austenitic stainless is lower than that of hardened steel so if the application requires both corrosion resistance and high strength a larger diameter should be considered For hinge applications where the pin will be subject to friction from rotation avoid slotted spring pins as the open slot can cause wear. For applications where the pin will require regular removal for purposes of repair or adjustment, consider extractable dowels (DIN 7979) or extractable taper pins (DIN 7977 or 7978). For safety-critical applications, avoid any form of electrolytic plating as the process to remove hydrogen embrittlement resulting from such plating is not fully reliable. Where considerations of hygiene are important, such as with food processing equipment, solid pins (dowels, grooved or taper) are preferred as dirt retention is avoided. Should you require any further information, please do not hesitate to contact us on +44 1536 461140 or sales@technifast.co.uk .