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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 .

For thirty years, Technifast has served the requirements of engineers who call or visit our website. If you would like any additional information about the products or services we offer, or want a tailored quotation for a specialist turned component, we’d like to hear from you. About Us History of Techifast Meet The Team Quality/Statements Commodity Codes Cette page est actuellement en construction. Veuillez contacter ventes@technifast.co.uk avec vos demandes de renseignements, merci.

Commodity Codes for Products Technifast supplied by Technifast Ltd About Us History of Techifast Meet The Team Quality/Statements Commodity Codes TECHNIFAST PRODUCTS COMMODITY CODES Below is a general list of the products supplied by Technifast and their commodity code. Country of Origin is not always the same so we are unable to provide this as a general statement, but is shown on quotations/order acknowledgements/advice notes/invoices Unthreaded Dowel Pins = 73 18 29 00 90 Threaded Dowels (extractable) = 73 18 19 00 90 Unthreaded Taper Pins = 73 18 29 00 90 Threaded Taper Pins (extractable) = 73 18 19 00 90 Grooved Pins = 73 18 29 00 90 Slotted Spring Pins = 73 18 29 00 90 Coiled Spring Pins = 73 18 29 00 90 Cotter Pins = 73 18 24 00 90 Retaining Pins (R-Clips) = 73 18 24 00 90 Clevis Pins = 73 18 29 00 90 Linch Pins = 87 08 99 97 90 Shaft Locking Pins = 87 08 99 97 90 Clearance Spacers (metal) = 73 18 29 00 90 Clearance Spacers (nylon) = 39 26 90 97 90 Threaded Spacers, Male/Female and Female/Female Mild Steel, Zinc Plated = 73 18 15 82 00 Threaded Spacers, Male/Female and Female/Female Brass, Nickel Plated = 74 15 33 00 00 Threaded Spacers, Male/Female and Female/Female Stainless Steel = 73 18 15 75 00 Threaded Spacers, Male/Female and Female/Female Aluminium = 76 16 10 00 00 Studding Connectors = 73 18 19 00 90 / 84 87 90 59 90 Brass Inserts = 74 15 39 00 00 All other Inserts = 73 18 19 00 90 Engineers Keys (Parallel/Woodruff/Gib-Head) = 73 18 24 00 90 All other Items - Threaded Parts = 73 18 19 00 90 All other Items – Non Threaded Parts = 73 18 29 00 90 https://www.trade-tariff.service.gov.uk/sections

Join Technifast as we celebrate 30 years in the fastener industry. We’ll be reflecting throughout our anniversary year with a unique look at the company’s history from our employee’s perspective and looking at how the precision engineering industry has evolved since 1990. About Us History of Techifast Meet The Team Quality/Statements Commodity Codes HISTORY OF TECHNIFAST Cette page est actuellement en construction. Veuillez contacter ventes@technifast.co.uk avec vos demandes de renseignements, merci.

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 Cette page est actuellement en construction. Veuillez contacter ventes@technifast.co.uk avec vos demandes de renseignements, merci. 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

Double Shear figures serve mainly to compare the relative strengths of different types of pin, or different diameters of the same type of pin. Datasheets Material Specifications Pin Economics Plating & Finishing Recommended Hole Sizes Shear Strengths Standards Tolerances SHEAR STRENGTHS Double Shear figures serve mainly to compare the relative strengths of different types of pin, or different diameters of the same type of pin. The conditions prevailing in a given application usually differ from test conditions. The test itself is carried out according to ISO 8749 and records the maximum load the pin will withstand before fracture. In practise, manufacturers’ figures provide the minimum load without any safety margin. Consequently shear figures are a design guideline and not a guarantee of performance. The figures given elsewhere across our website and datasheets are for double shear applications. Where a pin is used in single shear, the values should be halved. It is important to note that figures given based on testing to ISO 8749 do not allow for the effect of dynamic (shock) loads or bending moments. Specifically the test stipulates the following restrictions: - The clearance between the two pieces of the test block must not exceed 0.15 mm in order to maintain a straight line of shear. This is important in that in an assembly where the holes in the mating components are deeply countersunk, (even if the components themselves are flush) there will not be a straight line of shear and the resulting bending moment will reduce the shear strength. The shear planes must be at least one pin diameter from the end of the pin, and at least two diameters apart. The load must not be applied at a rate in excess of 13mm/min. In other words this is a test for static shear loads, not dynamic. Where an engineering application includes conditions that are not covered by the ISO 8749 test, the following guidelines may be used. Where there are dynamic loads, a coiled pin will perform better due to its shock-absorbing features. Where there is a bending moment of some significance a hardened solid pin is preferable, either through hardened for maximum shear strength or case hardened where less shear strength but more resistance to bending moments is required. Where there is a high level of vibration, a grooved pin will have the maximum retention provided it is of the full-length parallel grooved type (DIN 1473). Should you require any further information, please do not hesitate to contact us on +44 1536 461140 or sales@technifast.co.uk .

Technifast manufacture solid dowel pins and extractable dowels in metric & imperial sizes, in through hardened steel, mild steel and stainless steel to DIN, ISO and BS Standards. Dowels, Grooved & Taper Pins Pins Inserts Engineers Keys Spacers Other Products Solid Dowel Pins, Taper PIns & Groove PIns to ISO/DIN/BS standards and to customer specifications DIN 7977 / ISO 8737 / DIN 258 Male Extractable Taper Pins Taper Pins DIN 1A / DIN 1B / ISO 2339 Solid Dowel Pins, Taper PIns & Groove PIns to ISO/DIN/BS standards and to customer specifications 1/24 DOWEL PINS, GROOVED PINS & TAPER PINS Cette page est actuellement en construction. Veuillez contacter ventes@technifast.co.uk avec vos demandes de renseignements, merci. Cette page est actuellement en construction. Veuillez contacter ventes@technifast.co.uk avec vos demandes de renseignements, merci. ISO 2338 DIN 6325 DIN 7979D Dowel Pin Data Sheet GROOVED PINS Grooved Pins Data Sheet DIN 1 DIN 7978 DIN 7977 Taper Pin Data Sheet CONTACT US 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!

By placing an order with Technifast Limited, you are accepting our terms and conditions of sale. About Us History of Techifast Meet The Team Quality/Statements Terms & Conditions Privacy & Website Policy CHRISTMAS OFFERS 2021 - TERMS & CONDITIONS All offers are given at the discretion of Technifast and can be removed at any time, without prior notification. Discount Codes are valid from 01/12/2021 - 23/12/2021 but can be used against orders scheduled and taken in full by 31/03/2022. Carriage offer is for mainland UK only, excluding Highlands/Islands and residential locations. Product Discount Codes cannot be used in conjunction with any other discounts you would normally receive. Extra discount offer is given on total order value and doesn't affect normal discounts (eg if order would normally receive 40% discount, you are entitled to extra discount off the net total; £100 – 40% = £60, -10% = £54 total). All orders still need to cover standard terms of £2.00 minimum line value, £10 minimum order charge. Terms & Conditions 22/11/2021

Throughout December, there will be special offers across our website! Look out for our Christmas photos, click on the image and see what's available! *For orders over £100, there will be an additional 5% off when quoting XMAS5 *For orders over £250, there will be an additional 10% off when quoting XMAS10 E-Mail Now! *terms & conditions apply Close

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