The naams global standard components stamping and assembly are produced and maintained in a joint effort by daimlerchrysler corporation, ford motor company, general motors corporation and their suppliers. In 1893, metric standards, developed through international cooperation under the auspices of bipm, were adopted as the fundamental standards for length and mass in the united. Our selection of metric fasteners in din and iso standards will provide you with highquality fasteners for your next job. Purchasing information must be given to allow the fastener to be ordered correctly. The din standards remain common in germany, europe and globally even though the transition to iso standards is taking place. Nom diapitch nom size x pitch inch bolt torque table sae j429 and asme 574 metric bolt torque table iso 898. Sae fastener standards manual 2009 edition list of chapters. Product index metric metric products din 912din 6912 din 7984 iso 7379 iso 7380 din 7991 din 9 din 914 din 915 din 916 iso 2936 din 931933 din 960961 din 6921din 934 din 439 b. Machine threaded fasteners specify a thread density in threads per inch us or as a thread pitch in mm metric. At present, not all of the fasteners listed are covered by iso documents.
All products mil spec fasteners nas national aerospace. Consult the database with technical specifications of the products and comparison among din, iso, uni, afnor, en norms. 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. For more information on these and other guidelines, please phone us at 18004669780. Australiannew zealand standard mechanical properties of fasteners part 2. Our collection includes metric studs, snap rings, bolts and more.
Mudge fasteners carries a range of metric screws, bolts, nuts, washers and more. This fourth edition cancels and replaces the third edition iso 8981. Similar to an eye bolt but with wood threads instead of machine thread. This is a must have for all companies that buy, sell, or install mechanical fasteners made to the inch. Plastic toggle when these anchors are driven in they expand inside the hole for a secure grip. External metric thread table chart and fastener sizes m1. Diameterdecimal metric chart for small diameter fasteners. Fastener standards american national standards institute.
Fastenal uses cookies to improve website user experience. Unfortunately, there are currently three similar, yet slightly different metric fastener standard systems in use. 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. Titanium and aluminum bolts have limited usage, primarily in the aerospace industry. Industrial fasteners institute ifi iso fastener standards. To achieve this, tr manages a comprehensive library of national and international standards and specifications to assist all relevant people within the business. Note the product grades refer to the size of the tolerances where grade a.
Length length for most types of fasteners, the diameter is measured on the outside of the threads. The chart below shows metric bolt conversions and din numbers for fasteners. Iso 898 consists of the following parts, under the general title mechanical properties of fasteners made of. Nov 14, 2011 inch fastener standards by, 2003, industrial fasteners institute edition, in english 7th ed. These fastener standards allow hardware product manufacturers, as well as the endusers of such products, to examine and assess. Metric external fasteners thread and fastener sizes m180 m255 metric external fasteners thread and fastener sizes m260 m1060 metric internal fasteners thread designations sizes m0. This is an incomplete list of din standards the status column gives the latest known status of the standard. If you would like to prevent our website from using cookies or remove existing ones, you will need to adjust the cookies settings in your browser. 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. American fastener technologies corporation is pleased to present you with these useful standards and guidelines for nuts, bolts, and other fasteners. Rather than being stamped with f593cd or f593gh astm specifications for inch series. The following table chart defines standard metric external thread size m1.
Metric din 933 hexagon head cap screws bolts full thread. Ifi 114 2003 100 deg and 120 deg countersunk head style break mandrel blind rivets ansiasme b 18. They are now used around the world to assemble internationally traded goods. Us hex bolt sizes and thread pitches nuts and bolts.
Metric fasteners are usually classified as either coarse or fine, referring to their thread pitch, although some sizes are available in an extra fine thread. The book contains 92 separate standard specifications issued by astm, asme, sae and ifi. Free technical information industrial fasteners institute. Fasteners fasteners and threaded features must be specified on your engineering drawing. The terms bolts and screws do not refer to specific types of fasteners, but rather how they are used i. Bolts can be made from many materials, but most bolts are made of carbon steel, alloy steel, or stainless steel. It is time to move all metric fastener designs and requirements to the adoption of iso fastener standard and abandon most, if not all, of the asme, astm, sae, and din metric fastener standards. Fastener standards address the dimensions, testing, and use of screws, bolts, nuts, rivets, flanges, studs, and so forth. The class 2a allowance assures easier assembly of mating parts, minimizes galling and seizing in highcycle wrench assembly, and can be used to accommodate commercial electroplated. Metric millimeter bolt and nut substitutions will be allowed in accordance with these tables. A 91612 screw, which is comparable in diameter and is also coarse, has its threads spaced 0. The standard metric fastener thread series for general purpose threaded components is the m thread profile and the coarse pitch thread series.
He susceptibility of case hardened steel fasteners medcalf2018 8. Fasteners are defined as hardware that can be easily installed and removed with hand or power tools. Standardization of dimensions, tolerances, mechanical and functional properties, test methods and acceptance procedures of fasteners. The iso metric fastener standards started development about 40 years ago.
These thread sizes and classes represent bolts and screws, as well, as other standard external threads. Download metric line card pdf metric conversion chart pdf. Hexagon head bolts with metric fine pitch thread product grades a and b. Just because of historical purchases, many users of metric fasteners still call for din fasteners. Lubed means cleaned, dry bolts, lubricated with standard medium viscosity machine oil. Stainless steels include both iron and nickelbased chromium alloys. J bolts shoulder bolts j shaped bolts are used for tiedowns or as an open eye bolt. Us hex bolt sizes and thread pitches continued mm 10 20 30 40 50 60 70 80 90 100. Metric fastener standards spiralbound january 1, 1976 by ifi author see all formats and editions hide other formats and editions. Unified metric class external thread internal thread external thread internal thread loose 1a 1b 8g 7h standard.
The range of fasteners listed in this handbook will be found to satisfy the majority of applications, but where a special part is required ajax fasteners technical staff are available to advise on selection and design of the most suitable product. Iso metric hardware specifications table chart engineers. 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. Standard industrial fasteners are manufactured from either carbon or alloy steels. Width across flats wrench size and corners, nut height thickness and thread pitch dimensions are given for nut sizes between m1. Fastener reference tables conversions, hardness, thread pitch, tensile strength the tables below are provided as a general guide to help you better understand metric and imperial measurements. Sae fastener standards manual 2009 edition r sae j1061 feb2008 surface discontinuities on general application bolts, screws, and studs sae j1102 feb1995 mechanical and material requirements for wheel bolts sae j1102m mar2001 mechanical and material requirements for metric wheel bolts. Most standard fasteners are produced with a class 2a fit for bolts and a class 2b fit for nuts. The 2018 edition ifi book of fastener standards is a convenient compilation the most commonly used fastener standards for inch fasteners and noniso metric fasteners. These have been collected in the following 7 handbooks.
Metric fasteners din, jis, iso from mudge fasteners. Fastener components index page date series description f1 1997 autosteel partnership. Extensive inventory of metric fasteners and inch fasteners in our surrey, bc, mississauga, on, and shanghai, china warehouses. He susceptibility of bainite for high strength steel fasteners saliby2017 7. This standard is approved for use by nasa headquarters and nasa centers, including component facilities and technical and service support centers, and may be cited in contract, program, and other agency documents as a technical requirement. Standard specification for compressiblewashertype direct tension indicators for use with structural fasteners, inch and metric series. Coarse metric fasteners, when compared to standard inch fasteners those commonly used in north america, tend to be less coarsetheir threads are more closely spacedfor a. Nuts with specified proof load valuescoarse thread published jointly by. Iso fastener standards should be referenced for all metric fasteners metric fasteners are used throughout the world to assemble most products that are traded internationally. Standards australia 1 the crescent, homebush nsw 2140 australia standards new zealand level 10, standards house, 155 the terrace, wellington 6001 new zealand isbn 0 7262 98 1 this is a free 7. For the main part, the items have been selected from existing national standards. Fasteners bolts, screws, studs and nuts symbols and descriptions of dimensions. Metric threads are defined in the standards document iso 9651.
The metric system has its own unique way of marking and designating stainless steel fasteners. Metric bolt conversion data for industrial boltsrods, machine screws and small diameter fasteners from elgin fastener group includes metric to standard bolt conversions. Representing the interests of north american mechanical fastener manufacturers since 1931. Common fasteners include screws, bolts, nuts and rivets. A short guide to metric nuts and bolts dd thomson engineering. When this type of fastener is used, the parts will never be disassembled. Mechanical properties for stainless steel fasteners 3. Stud bolts for pressuretemperature piping 21 general purpose endtoend studs 22 tap end stud bolts 23 double end stud bolts 24 bolts hex cap screws finished hex bolts 31 wrench openings for square and hex bolts and screws 32 to 33 heavy hex bolts 34 heavy hex structural bolts 35 highstrength structural bolting 36. Unified metric class external thread internal thread external thread internal thread loose 1a 1b 8g 7h standard 2a 2b 6g 6h. Standard general assembly class 2 close high accuracy, fine fits class 3 designations for each class and the type of thread inside or outside for unified and metric are given below.
We do not use cookies for the processing, collection, or storage of personal data under any circumstances. Iso tolerances for fasteners jiangyin donghao stainless. Lubricate all contact areas of the bolts and washers. Fastener conversion approximate equivalency common din numbers. Selection of metric, standard and special fasteners metric products metric products.
Thus the same fastener may be termed a bolt or a screw. Metric fasteners purchase standard metric studs, snap rings. Metric hex bolt diameters and thread pitches mm 10 20 30 40 50 60 70 80 90 100 110 120 140 150 160 170 180 190 200 210 220. Do not use these values for standard metric internal thread design. As with unified fasteners, metric bolts will be stamped to designate the type of stainless steel that they are made of. There are two standard profiles m and mj where both have a similar geometry. This 1155 page book is the latest of the ifi standards book referred to by industry as the bible of the fastener industry since the 1950s. Metric bolt conversion data for industrial bolts rods, machine screws and small diameter fasteners from elgin fastener group includes metric to standard bolt conversions. Standard specification for anchor bolts, steel, 36, 55, and 105ksi yield strength. Ifi 2018 book of fastener standards ifi 2018 book of fastener standards ifi 2018 book of fastener standards toc now available2018 online edition. Iso metric screw threads are designated by basic diameter and thread pitch.
Dimensional standards for bolts and screws also available in english. Metric hex nut dimensions sizes chart according to iso 4032. Din formally withdrew most of its fastener standards in. At the moment din has published more than 400 standards on fasteners and about 100 standards on screw thread. 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. This part of iso 4759 specifies a selection of tolerances for bolts, screws, studs and nuts with iso metric threads and with product grades a, b and c and for tapping screws with product grade a. Nonremovable fasteners that expand behind the material, e. For example, m10 or m106g, by default, specifies m10 x 1. Glossary of terms for mechanical fasteners a standard for engineers worldwide asme b18. Under the metric system, each of the eight product types would have its own individual standard. To be the globally recognized, north american focused, leading association representing the interests of the manufacturers of mechanical fasteners and formed parts, and the key suppliers to the industry, fostering their working together to shape the future of. Mmcc is currently open and operating at all our 5 us locations. Chemical composition for austenitic stainless steel fasteners 4.
Of the 99 8th edition fastener standards, 48 have been revised and updated in the 9th edition. Quality standards it is extremely important to the high level of product quality that the latest standards and specifications are available on demand. Kaptoggle a non removable anchor commonly used for hollow spaces such as drywall and masonry block. Shoulder bolts also known as stripper bolts are used to create a pivot point. Elevator bolts elevator bolts are often used in conveyor systems. Similar to an eye bolt but with wood threads instead of. The standard metric fastener thread series for general purpose threaded. Fasteners bolts, screws, studs and nuts symbols and designations of dimensions.
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