Standard fasteners are basic industrial fasteners square and hex bolts, cap screws, carriage bolts, plow bolts, lag screws, studs, nuts, rivets and others which have been standardized over. Flat washers are covered under the astm specification f844. Carriage bolts and lag bolts 37 square bolts 38 step bolts and countersunk head elevator bolts 39 nuts finished and heavy hex nuts 41 hexagon machine screw nuts 42 type a forged. A theoretical rather than practical class, now obsolete. Mushroom and countersu nkhead bolts and nuts 1 scope this standard gives the requirements for one type of mushroomhead bolts, four types of countersunkhead bolts and hexagon and square nuts. Nuts m16 and smaller are chamfered on the top and the bearing surface. Astm specifications for bolts nuts washers americal. The recognized standard for normal production of the great bulk of commercial bolts, nuts and screws. Bolts to this standard when matched with the appropriate nuts have been designed to provide. Fasteners bolts, screws, studs and nuts symbols and designations of dimensions. Standard inch and metric bolts are available in a variety. These include, but are not limited to, overtap amount, coating grade, lubrication requirements, and proof load testing.
Class 5 is also mechanically plated but there is currently no national standard to adhere to. Metric high tensile, precision hexagon head bolts, screws and hexagon. P stud bolts, astm a193a193m and asme sa193sa193m, grade b7 stud with 2h heavy hex nut, plain, assembly the information below lists the required dimensional, chemical and physical characteristics of the products in this purchase order. Astm specifications for bolts nuts washers americal society. Fasteners bolts, screws, studs and nuts symbols and descriptions of dimensions. Nut and washer sizes indicate the screw or bolt they fit. P stud bolts, astm a193a193m and asme sa193sa193m, grade b7 stud with 2h heavy hex nut, plain. The figure 283pvc is for support of piping where contact with the pipe is not desired. Machine screws with no head for screwing all the way into threaded holes. Elevator bolts elevator bolts are often used in conveyor systems. Metric high tensile, precision hexagon head bolts, screws and hexagon nuts. Bolts to this standard when matched with the appropriate nuts have been designed to provide an assembly with a high level of assurance against failure by thread stripping on overtightening. Nuts, bolts, screws and washers university of babylon. Din 3570 dimensions, specifications, standard, weights.
Used where a closed fit between mating parts for high quality work is required. Stud bolts, astm a193a193m and asme sa193sa193m, grade b7. Structural bolts structural nuts dimensions e s ds 45o k d 15 30o dt d 15 30o o m e t s. Standard inch and metric bolts are available in a variety of sizes, strengths, materials and finishes. Sundram fasteners limited fasteners division fd hexagonal head bolt 21 grade mark reference standards. Standard u bolts are available off the shelf in mild steel zinc plate and stainless steel. Sizes of nuts and bolts chart free pdf file sharing. Dimensions of cross recessed flat countersunk head machine screws. J bolts shoulder bolts j shaped bolts are used for tiedowns or as an open eye bolt.
A style 1, heat treated fastener with a metric thread pitch. A325 type 3 a449 type 1 diam bolts and lag bolts 37 square bolts 38 step bolts and countersunk head elevator bolts 39 nuts finished and heavy hex nuts 41 hexagon machine screw nuts 42 type a forged wing nuts 43 hex slotted nuts 44 hex and heavy hex jam nuts 45 to 46 hex castle nuts 47 large diameter hexagon head cap nuts 48. The american society for testing and materials is an international standards organization that develops and publishes voluntary consensus technical standards for a wide range of materials, products, systems, and services. Us hex bolt sizes and thread pitches nuts and bolts. Heavy hex structural bolt, a325, type 1, astm a563 grade dh. Note attention is drawn to the importance of ensuring that the bolts are correctly used if satisfactory results are to be obtained. The torques listed below are based on testing requirements. Hex bolts, or hex cap screws, are used in machinery. Jbolts shoulder bolts j shaped bolts are used for tiedowns or as an open eye bolt. There are no fewer than 5 different threads for different applicaons and 10 different standard. Determine the maximum torque according to bolt nut size and grade. Similar to an eye bolt but with wood threads instead of machine thread. U bolt dimensions range from m6 to m20 in terms of thread diameter, with various lengths and specials also available. Standard ubolt figure 283 carbon steel figure 283pvc pvc coated figure 283ss stainless steel our standard ubolts are recommended for use as supports or guides for piping.
The need for bolts, screws and nuts covered by this british standard has been. Mushroom and countersu nkhead bolts and nuts 1 scope this standard gives the requirements for one type of mushroomhead bolts, four types of countersunkhead bolts and hexagon and. Dimensions above are prior to coating specification requirements. Houston, tx 77054 phone 77470090 u2022 fax 77470855 filename. Shoulder bolts also known as stripper bolts are used to create a pivot point. Hex nuts with a diameter under 14 are called hex machine. Hex bolts carriage bolts lag bolts set screws bolts with a hexagonal head with threads for use with a nut or tapped hole. Iso metric hexagon nuts, including thin nuts, slotted. A194 15 standard specification for carbon steel, alloy steel, and stainless steel nuts for bolts. This international standard gives specifications for fully threaded hexagon head screws with metric dimensions and thread diameters from 3 mm up to and including 36 mm. Nuts m20 and larger may be double chamfered, or have a washer face on one side and a chamfered surface on the.
Anchor bolts bolt types standard bolt size hex bolts. A325 bolts earnest line of hot dip galvanized nuts are lubricated with a wax that has a blue dye added to clearly mark the nuts as lubricated. All dimensions are given in inches unless otherwise indicated. Us hex bolt sizes and thread pitches continued mm 10 20 30 40 50 60 70 80 90 100. A short guide to metric nuts and bolts dd thomson rail. The torque that is used to assemble these nuts should be based on the designers or applications requirements. Standard ubolt figure 283 carbon steel figure 283pvc pvc coated figure 283ss stainless steel our standard ubolts are recommended for use as supports or guides for. These products are acquired from the best range of brands available in its. Unr thread form standard unified national radiusroot c coarsethread series 2a class of thread fit the coarsethread series unrc or unc is used on the vast majority of bolts and nuts.
Standard fasteners are basic industrial fasteners square and hex bolts, cap screws, carriage bolts, plow bolts, lag screws, studs, nuts, rivets and others which have been standardized over the years as to type, style, usage, properties, dimensions and tolerances. Standard ubolt figure 283 carbon steel figure 283pvc. A194a194m 2h heavy hex inch nuts may be used in place of a563 dh nuts on type 1 a325. Dimensions of suitable nuts are also given and illustrated in fig. Heavy hex structural bolt, a325, type 1, astm a563 grade.
Number of threads per inch ranges from 20 threads for a 14in. Finished hex head bolts grade 2, 5, 8 and l9 sae grade 2, astm a307 plain. Portland bolt has the ability to manufacture or provide nonstandard square, rectangular, or. Bolts are externally threaded fastener products that are used in combination with equally threaded nuts to join two or more components. Below is a chart with the dimensions of our stocked high tensile bolts, in accordance with australian standards. When coated 2h nuts are used in place of dh, the same requirements of a563 and f3125f3125m, including annex a1, shall apply. Selection of bolts of various types, threads and sizes for demonstration examples. Us hex bolt sizes and thread pitches nuts and bolts, screws. Fastener, bolt and nut supplier in malaysia standard bolts. Us nut sizes bolt depot nuts and bolts, screws and. Thread diameter d m 3 m 4 m 5 m 6 m 8 m 10 m 12 m 14 m 16 m 20 m 24 m 30 m 36 thread pitch coarse 0. There are numerous grades and the heavy pattern is typically used for large diameter and high strength bolts. Sundram fasteners limited fasteners division fd hexagonal flange bolt 2f grade mark reference standard. Standard u bolts are available off the shelf in mild steel zinc plate and.
Bolts to this standard when matched with the appropriate nuts have been designed to provide an. Australian bolt standards bolts nuts screws online. These products are acquired from the best range of brands available in its market and to fulfill our customer requirement. Washers provide a smooth bearing surface and are used under the head of a bolt and or a nut. Heavy hex nuts are slightly larger and thicker than standard finished hex nuts. Us nut sizes mm 10 20 30 40 50 60 70 80 90 100 110 120 140 150 160 170 180 190 200 210 220. Step bolts and countersunk head elevator bolts 39 nuts finished and heavy hex nuts 41 hexagon machine screw nuts 42 type a forged wing nuts 43 hex slotted nuts 44 hex and heavy hex jam nuts 45 to 46 hex castle nuts 47 large diameter hexagon head cap nuts 48 round spanner nuts 49 heavy hex nuts with tommy bar holes 410. They can be created to drawings or customer specification and can be manufactured to order, please send your requirements.
Bolts with a smooth rounded head that has a small square section underneath. Always consult the manufacturers instructions or engineering recommendations when making bolted connections. Din 3570 ubolts dimensions, specifications, standard, weights, equivalent and download pdf email. Bolts are an essential part of a mechanical joint and are available in a wide range of. Standards for dimensions and tolerances are issued.
These washers are unhardened and intended for general use. A wide variety of jis standard bolts and nuts options are available to you, such as gb. Technical specification for metric hexagonal bolts, nuts, coach. Nuts 111 g1 f h small machine screw nuts pattern description similar in design to standard hex machine screw nuts but with smaller widths across the flats and across the corners.