The term fastener covers all types of products designed to mechanically connect two or more structural parts to form a solid or movable joint or to contribute essentially. Our flagship being that we remain 100% new zealand owned and operated and continue to pride. We will have a grid of logos, when clicked takes you to their estore website. Din en iso 4753 governs thread ends for bolts assembled with. You would think that with all these standards that iso would have been able to put them all together an produce a single world standard, this is not the case and you can still buy product that conforms to the old obsolete british standard. This website gives no warranty and accepts no responsibility or liability for the accuracy or the completeness of the information and materials contained in this website. Critical applications and special fasteners, however sometimes require extra security and a. Sundram fasteners limited fasteners division fd product catalogue for standard fasteners. Dimensional comparison of hexagon nuts according to din and iso standards. The german din standard is the dominant standard on the planet for metric fastener products and world manufacturers continue to make to the standard. This is the unified thread series and consists of specifications for unified coarse unc unified fine unf and unified extra fine unef threads. Class 1a and 1b classes 1a and 1b are very loosely toleranced, there. Fasteners differences between din en iso standards.
Din 7980 dimensions, specifications, equivalent standards, weights, pdf. Din deutsches institut fur normung german institute for standardization standards are issued for a variety of components including industrial fasteners as metric din 933 hexagon head cap screws bolts. A whole series of the listed din standards have now been re placed by the deutschen institut fur normung with iso standards. The identification of the fasteners of size m8 and above shall be marked, on the upper face or side of the head with depressed characters of rounded root form and not greater than 0.
With ubiquitous usage in many fields of industry, fasteners come in a similarly wide variety, differing even within the range of a single design in everything from size to material, coating, inspection criteria, etc. Din 7980 spring lock washer for cylinder head screws. Fastenerdata fastener standard description lists 29. Boltport manufacturers asme standard fasteners in full range of material grades and specifications. We have grown dramatically since the eighties with nine branches nationwide. Mechanical properties proof load psi yield strength min psi tensile strength min psi b8 astm a193grade b8 bolts, screws, studs for hightemperature service aisi 304strain hardened 14 thru 3. It is intended for advisory purposes only and use of this information is completely voluntary. Din 965 cross recessed countersunk flat head screws dimensions, specifications, standard, weights, equivalent and download pdf. Sae j1648 aug1996 protective coatings for fasteners sae j1701 mar1999 torquetension tightening for inch series fasteners sae j1701m jul1996 torquetension tightening for metric series fasteners sae j2486 may1999 tension indicating washer tightening method for fasteners 2. Nylon insert lock nuts din, iso standards ita fasteners. These fasteners are used to mechanically join or affix other hardware objects together, and come in many forms which include rivets, nuts, bolts, studs, screws, washers, eyebolts, nails, and threaded fasteners.
Fastener standard online search, din, ifi, jis, iso standard, please enter the standard number or product name. Changing some of the national din standards to en or iso standards will remove trading obstacles in international goods flows as well as harmonizing technical rules. Thirty years on, this vision is still paramount, a service that delivers a range of fasteners on time, every time. Just because of historical purchases, many users of metric fasteners still call for din fasteners. For the first time, the new din allows researchers, test engineers and clients worldwide to conduct fastener vibration tests that genuinely compare like with like. The successor iso standards largely comply with the din standards withdrawn. Iso 7046 cross recessed countersunk flat head screws. Technical delivery conditions and basic standards 30 29. Mudge fasteners carries a range of metric screws, bolts, nuts, washers and more. The specification used to produce the corresponding inch series fastener is ansi b 18.
Metric thread specifications always begin with thread series designation for example m or mj, followed by the fasteners nominal diameter and thread pitch both in units of millimeters separated by the symbol x. The iso equivalent for din 7 parallel dowel pins is iso 2338. Property class and manufacturer shall be indicated in the identification. List of dimension standards for din fasteners including bolts, screws, nuts, studs, washers, pins, keys etc. The processes used must be standard and part of annexure1, 2 and 3. Din 960 is the specification for partially threaded fine thread metric hex cap screws. An alphanumerical designation to indicate the standard grade of tolerance and allowance specified for a thread. Com fastener technical data and charts section important disclaimer all of the information provided in this section has been assembled with concern for accuracy.
Great britain and canada established the current system for standard inch dimension threads. The following table is provided for guidance only as there are often dimensional variations between standards. This handbook gathers together more than 150 international standards relating to fasteners and screw threads. A list of organizations represented on this committee can be. Standards for terminology, nomenclature and other general reference standards, such as those for technical drawings for screw threads and threaded parts are included in volume 1. Nl din standards committee aerospace din standards. Germany withdraws din standards in 2001 to adopt iso fastener standards. Nylock nuts from ita fasteners have a nylon filled center which prevents the components from loosening.
Head tapping screws din 7983 hex head self tapping screws din 7504 k, m, o wing screws ph coarse thread selftapping screws hexheadtappingscrews withwasher pan headtapping screws din. Consult wurth industrie frances entire fasteners differences between din en iso standards catalogue on directindustry. Din standard for fastener mechanical engineering general. You only have to note that different sizes of fastening tools have to be used for the dimensions m10, m12, m14 and m22. Hexagon dome nuts din 1587 standards ita fasteners. For example din 931 is for partially threaded coarse thread.
Sundram fasteners limited fasteners division fd hexagonal head bolt 21 grade mark reference standards. Before the 1970s there were many metric fastener standards in use. The nylon filling is machine threaded and acts as a. Sundram fasteners limited fasteners division fd c o n t e n t s sl no. B k l e f 186 neck iran technic trading 1 d e f k b m6 16 6 4. Fastener standards british bs, german din, american ansi and iso international. Industrial fasteners institute ifi iso fastener standards. For more information on these and other guidelines, please phone us at 18004669780. Din 965 dimensions, specifications, equivalent standards. Hex dome nuts or acorn nuts got their names due to the domeshaped projection on one side of the nut.
All technical information is of a general nature, is mainly based on the german din, the european en and the international iso standards and is of importance for the construction, calculation and testing of bolted joints. Fasteners differences between din en iso standards wurth. The content of the third edition published in 2002, which this. Din 25201 important new standard for testing fasteners. Din iso metric fasteners crossreference din iso jis category standard standard standard description 68 internal threads, class 6h 8981 external threads, class 6g r1501 internal threads, class 6h 84 1207 machine screws, slotted cheese head 85 1580 machine screws, slotted pan head 125a 7089 flat washers, standard 126 7091 flat washers. Therefore, there are normally no restrictions on use. Metric fasteners din, jis, iso from mudge fasteners. This is an incomplete list of din standards the status column gives the latest known status of the standard. This standard announces the withdrawal and indicates the iso standards that should be used to replace the withdrawn din standards. Din 7344 dimensions, specifications, equivalent standards. The directives in the international iso standards, as. The directives in the international iso standards, as well as the european en standards, also standardize fasteners. American fastener technologies corporation is pleased to present you with these useful standards and guidelines for nuts, bolts, and other fasteners. Din iso 898 part 1 mechanical properties of fasteners.
Metric thread specification is given through iso standards. Din 7980 dimensions, specifications, standard, weights. Din 74, countersinks for countersunk head screws except screws with din en 27721. General survey of successor din iso standards predecessor iso din standards 31 2 carts t certanty.
Din standards continue to be used for parts which do not have iso equivalents. All the information provided on this website is provided on an as is and as commonly used in production basis and you agree that you use such information entirely at your own risk. Mechanical properties of fasteners made of carbon steel. The din standards are commonly used in germany, europe and globally even though the transition to iso standards is gradually taking place. Standardization of dimensions, tolerances, mechanical and functional properties, test methods and acceptance procedures of fasteners. When referring to standards and specifications, we will use only the wellknown initials of the above societiesansi, asme, ifi, astm and sae. The din standards remain common in germany, europe and globally even though the transition to iso standards is taking place. For fasteners of size below m8 and wire thread inserts. Din 3570 ubolts dimensions, specifications, standard, weights, equivalent and download pdf.
Manufacture of fasteners detailed process and qc plan shall be submitted to isac and approval to be obtained from isac before the manufacture of the fasteners. This also gives greater confidence to engineers specifying components, because the testing standards of critical fasteners are so much tougher than under din 65151. Din and standard parts 119 93 hexagon headtapping screws din 7976 ph pan headtapping screws din 7981 ph counter. Din 555 dimensions, specifications, standard, weights.
There are large numbers of fastener products with no standards most of them. These fastener standards allow hardware product manufacturers, as well as the endusers of such products, to examine and assess. The main difference between each of the hex cap screw standards is the width across the flats dimensions for the m10, m12, and m14. Din standard specifications for bolts, nuts, screws, fasteners, springs and anchors. Din 7980 spring lock washer for cylinder head screws dimensions, specifications, standard, weights, equivalent and download pdf. For example din 931 is for partially threaded coarse thread metric hex cap screws. Din handbook 10 fasteners 1 dimensional standards for bolts, screws and studs national standards din handbook 55 fasteners 3 standards for technical delivery conditions for bolts, screws, nuts din handbook 140 fasteners 4 basic and dimensional standards for nuts din handbook 193 fasteners 5 basic standards. Institute for screw threads and fasteners is the group that drafts the standards concerning fasteners for the jis japanese industrial standards and currently more than 140 such standards, including some unique to japan, have been issued as jis b based on the concept of harmonizing them with existing international standards. Half thrd fine pitch hex bolt din 960 pdf download.
Metric din 933 hexagon head cap screws bolts full thread. Fastener standards address the dimensions, testing, and use of screws, bolts, nuts, rivets, flanges, studs, and so forth. The growing adoption of iso fastener standards has resulted in most industrialized countries withdrawing their countryspecific standards and formally adopting the iso standards as their metric fastener system. This european standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the. Din 3570 dimensions, specifications, standard, weights. Din formally withdrew most of its fastener standards in april of 2001 when issuing din 918. Industrial fasteners institute ifi why iso standards. Asme standard bolts, screws, nuts, washers, studs and other fasteners in metric and imperial sizes. If a standard has been withdrawn and no replacement specification is listed, either the specification was withdrawn without replacement or a replacement specification could not be identified. On european level, din standards committee aerospace is also involved in the work of centc 436 project committee cabin air quality on civil aircraft chemical agents and internationally in isotc 20 aircraft and space vehicles and its subcommittees. For specific product information and nonstandardized fasteners we refer to the various brochures of our documentation. Bolts and din en 1661 nuts, in which the width was 16 mm. Metric threads are defined in the standards document iso 9651.
Hexagon head bolts most din standards for these bolt types have been withdrawn years ago. Industrial fasteners institute 6363 oak tree boulevard independence, ohio 441 usa all standards and specifications are advisory only. Consult the database with technical specifications of the products and comparison among din, iso, uni, afnor, en norms. The nylon filling is machine threaded and acts as a lock to ensure that the fastening is secure. This is mostly used to protect objects close to the ends of screws from scratches and structural injuries. Din 7344 spiral dowel pins, heavy duty dimensions, specifications, standard, weights, equivalent and download pdf. We do not guarantee its completeness or validity and assume no. With ubiquitous usage in many fields of industry, fasteners come in a similarly wide variety, differing even within the range of a single design in everything from size. W metric din 7 parallel dowel pins aspen fasteners. Din 80705 thin nuts with fine pitch thread and with small widths across flats. The iso standards that concern fasteners are handled by tc1 screw threads.
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