Sae international society of automotive engineers is a standards development organization with fastener specifications that apply to the aerospace, automotive, and commercial vehicle industries. General purpose bolts and screws metric series radii under the head jis b1186 amd 12007 sets of high strength hexagon bolt, hexagon nut and plain washers for friction grip joints amendment 1. The following formula was used in establishing stud bolt lengths listed in. The h4 connector bolts were coated to an sc 2 class and are used in marine subsea service blowout preventer bop applications. Bolt specific standards back to fastener standards for screws, bolts, and studs home hex head bolts round head bolts aerospace bolts bolt materials. These are the maximum ghtening torques recommended in the standards for di. This was a quick way to get a good supply of bolts and nuts for my new. Width across flats wrench size and corners, nut height thickness and thread pitch dimensions are given for nut sizes between m1. Astm a194 carbon and alloy steel nuts for bolts for high pressure and high temperature service. Nuts and bolts how to read bolt grades my pro street.
Duplex steel s31803 nut bolts, astm a479 duplex s32205 nuts. Provide bolts and nuts that meet the standards given in table 1. Generally, bolt standards are introduced when new products become available and the demand exists. Ogee thick, large diameter, cast iron washers with a curved or sculpted appearance.
For more information on these and other guidelines, please phone us at 18004669780. A short guide to metric nuts and bolts answers to the most frequently asked questions standard and fine pitch th reads how to identify nut and bolt strength grades how nut and bolt strength grades compare maximum tightening torques why specifi ed torque is sometimes lower than the maximum spanner sizes versus bolt nut thread size. If you own a machinerys handbook, now would be a good time to get it out. Sets of high strength hexagon bolt, hexagon nut and plain washers for friction grip joints. Engineers all over the world have been trying to agree on a standard for machine screws since the mid19th century, with the us, uk, france. Jis specialty bolts these bolts meet the old jis specification.
Bolts are measured in many different types of parameters. Heavy heads and nuts bolt users may require a bolt head or nut of greater. General description of stud bolts and hex bolts used in. Japanese industrial flanges, bolts, nuts, and gaskets standards and specifications from jas the japanese standards association engineering toolbox resources, tools and basic information for engineering and design of technical applications. Astm specifications for bolts nuts washers americal. The 8thread series 8unr or 8un is used only for sizes over 1 in. Frequently used grades are a193 for thread rods and a194 for the.
Bolts in astm a193 and nuts in astm a194 all grades. Bolts are externally threaded fastener products that are used in combination with equally threaded nuts to join two or more components. Technical specification for metric hexagonal bolts, nuts, coach. Nov 1991 may 1995 oct 2001 may 2006 sae arp 1902b2018 bolt, tee head, interface surface, dimensions for. Types of milspec washers include flat washers, split lock washers, screw washers, internal tooth lock washers and external tooth lock washers.
Nuts are almost always used in conjunction with a mating bolt to fasten. Metric fasteners are measured by length and pitch, or the distance between threads. A bolt is a type of threaded hardware fastener that is used to position two workpieces in specific relation to each other. The bolts are available as structural bolting assemblies which include a fixed spline bolt, a suitable nut and at least one washer covered by reference herein. Minimum threads protruding beyond nut engineers edge. Jis bolts are available only in diameters where the head size is different than standard metric bolts. Astm a153 zinc coating hot dip on iron and steel hardware.
Nuts are almost always used in conjunction with a mating bolt to fasten multiple parts together. Dimensions from stud bolts are defined in the asme b16. Astm a193 and a194 bolts and nuts from glaser and associates are available in a range of grades, including b7, b16 b8 and b8m to meet different design, service conditions, mechanical properties, and high temperature requirements. Shop bolts and a variety of hardware products online at lowes. Most car guys will remove, install and replace bolts many times and never look at bolt grades. Iso metric hexagon nuts, including thin nuts, slotted. Jis jis is a bolt standard that is popular in the motorcycle world. A bolt is specifically designed to be used with a mating, internally threaded hole or nut, which will maintain the bolt s alignment as well as the materials position on the bolt.
We also carry a wide range of other bolts including flange screws, lag screws, plow bolts, square head bolts, step bolts, structural bolts and more. Astm a194 industrial fasteners nuts and bolts grainger. Bolt length nominal diameter m12 m14 m16 m18 m20 m22 m24 m27 m30 m33 m36 m39 m42 m45 m48 m52 m56 m60 m64 approximateweightsinkilogramskgseach nuts m12 m14 m16 m18 m20 m22 m24 m27 m30 m33 m36 m39 m42 m45 m48 m52 m56 m60 m64. Plain washers for bolts, screws and nuts product grades a and c.
Fastener standards and guidelines american fastener technologies corporation is pleased to present you with these useful standards and guidelines for nuts, bolts, and other fasteners. There is no finethread standard for fasteners over 112 in. Sae bolts are also used in machinery, equipment, and oem applications. Bolt type and finish nut class and finish 1, plain noncoated a563c, c3, d, dh, dh3, plain. Technical specification for metric hexagonal bolts, nuts, coach screw, and flat washers. The end point is the end portion of a stud bolt beyond the complete thread and may be chamfered, rounded, or sheared. Different designs in engine and machine parts have called for. Stud bolt with nuts point height l api type 6b flange l s figure 2.
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. Astm standards a325m and a490m cover the metric versions although metric bolts are rare. These fasteners are used to mechanically join or affix other hardware objects together, and come in many forms which include rivets, nuts, bolts, studs. A short guide to metric nuts and bolts 2 thomson rail.
Astm a563 standard specification for carbon and alloy steel nuts. American fastener technologies corporation is pleased to present you with these useful standards and guidelines for nuts, bolts, and other fasteners. According to ge, relevant api standards cannot be applied if a coating thicker than sc 2 is used. Metric hex nut dimensions sizes chart according to iso 4032. Standard metric hex nuts, types styles 1 and 2 per. Ubolt application and design u bolts are manufactured from wire and round stock by cold or hot forming methods. Metric high tensile, precision hexagon head bolts, screws and hexagon nuts. Select fastener superstore when you need militaryspec. Hexagon head bolts, screws and nuts of product grades a and b, part 1.
Strength specifications for bolts astm a490 series bolts are equivalent to astm a325 bolts in application and geometry. Astms fastener standards are instrumental in specifying, testing, and evaluating the material, dimensional, mechanical, and metallurgical properties of the various forms of hardware fasteners. The recommended parts are tools, zippers, pull shelves and machine parts. Ansi hardware design guide and charts engineers edge. Understanding nut and bolt specifications, version1. This awhem recommendation derives its basis from api spec 6a and those standards referenced therein. Fasteners bolts, screws, studs and nuts symbols and designations of dimensions. Fluorescent high locking strength locks and seals large coarse threaded nuts, bolts and studs tested to the lot requirements of military specification. Fasteners general requirements for bolts, screws, studs and nuts. They have smaller heads than standard metric bolts. 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. Technical specification for metric hexagonal bolts, nuts. The higher the tpi in a standard bolt, the finer the threads because theres more squeezed into a set space.
Check this is the latest process zone version before use. Milspec washers can be used in aerospace, automotive, industrial and defense applications. The nut thickness shall be the overall distance, measured parallel to the axis of nut, from the top of the nut to the bearing surface and shall include the thickness of the washer face where provided. We have a check on market drifts and needs, to produce new, sustainable and efficient products capable of undergoing customization. These standards are apparent in the bolts mechanics use for automobiles and motorcycles. Table 1 bolt and nut standards specified anchor bolt category bolt standards nut standards mild steel astm a 307 gr. These products are acquired from the best range of brands available in its market and to fulfill our customer requirement. Accordingly, second revision was published in 1963 splitting the standard into 5 parts covering hexagon head bolts, hexagon head screws, hexagon nuts, hexagon thin nuts chamfered and hexagon thin nuts unchamfered. This includes the head, length and more, however, the bolt thread is often the hardest to measure. Nylon insert lock a nut with a nylon insert to prevent backing off. General description of stud bolts and hex bolts used in petro.
Contact fastener solutions for more information regarding custom bolts. They include nuts and bolts, threaded rods, structural bolts, machine screws, wedge anchors, washers, rivets, and more in a variety of types and sizes, including metric and inch. Fastener standards address the dimensions, testing, and use of screws, bolts, nuts, rivets, flanges, studs, and so forth. Because of their eastern origin, jis bolts are a type of metric bolt as opposed to the u.
Astm fastener standards specify and test the properties of mechanical fasteners such as bolts, nuts, screws, and other hardware fasteners. A bolt is specifically designed to be used with a mating, internally threaded hole or nut, which will maintain the bolts alignment as well as the materials position on the bolt. Small andor short bolts come in 18 or 14inch increments. May 22, 2019 sae nuts, bolts and screws are measured by their thread count, or tpi threads per inch and their length.
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. It includes hex head nut, nylon insert lock nut, jam nut, square nut, cap nut, t nuts, castle nuts, anchor bolts, flange bolt, hanger bolts, hexagon bolt, tap bolt, shoulder bolt, square head bolts. 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. Tooth washer internal external size data star washers nsiasme b18. Astm a193 and a194 bolts and nuts from glaser and associates are available in a range of grades, including b7, b16 b8 and b8m to meet different design, service conditions, mechanical properties. Asme flanges has a minimum four bolt hole and for higher diameter flanges, number of bolt holes are always in multiple of four. They reduce the chances of a nut or bolt loosening.
Australian bolt standards bolts nuts screws online. Anchor bolts bolt types standard bolt size hex bolts. For existing installations utilizing standard nuts, acceptable minimum thread protrusion would be where the male thread, below any unthreaded chamfer or crown, is flush with the top of the nut. Astm specifications for bolts nuts washers americal society. The nuts and bolts of thread standards supplyframe medium. Fabricate and install anchor bolts to be embedded in or attached to concrete. Commercial grade domestic nut, bolt and fastener assortments with industrial pricing. Head marking grade and material nominal size range inches. Standard inch and metric bolts are available in a variety of sizes, strengths, materials and finishes. Iso has developed numerous standards for fasteners such as bolts, screws, nuts, washers, dowel pins, etc. Bolts, screws and nuts with thread diameters between 1,6 inclusive and 150 mm inclusive and product grades a, b and c. Nut and bolt assortments fastener assortments and kits. Standard specification for heavy hex structural bolt nut washer assemblies, alloy steel, heat treated, 200 ksi minimum tensile strength f3125 f3125m 19 standard specification for high strength structural bolts and assemblies, steel and alloy steel, heat treated, inch dimensions 120 ksi and 150 ksi minimum tensile strength, and metric dimensions 830 mpa and 1040 mpa minimum tensile strength.
The height of a nut for a stud bolt is the same as the diameter of the thread rod materials for stud bolts. Us recommended bolt torque bolt depot nuts and bolts. Determine the maximum torque according to bolt nut size and. Bolt specific standards american national standards. Astm a194 is the standard specification for carbon and alloy steel nuts for bolts used in equivalent highpressure or hightemperature environments. The two partners are kept together by a combination of their threads friction with slight elastic deformation, a slight stretching of the bolt, and compression of the parts to be held together. Astm standards a325 and a490 have been around for half a century, whereas a325m, a490m, f1852, and f2280 were released in later dates.
Japanese industrial flanges, bolts, nuts, and gaskets standards and specifications from jas the japanese standards association. The material qualities for studs are defined in the different astm standards, and are indicated by grade. Specification for forging stock and wire of titaniumaluminiumvanadium alloy tensile strength 11000 mpa limiting ruling section 20 mm primarily intended for the manufacture of fasteners complying with the requirements of the a series of british standards. This indian standard part 3 fourth revision which is identical with iso 4032. Below is a chart with the dimensions of our stocked high tensile bolts, in accordance with australian standards. Fasteners bolts, screws, studs and nuts symbols and descriptions of dimensions. The state of illinois has been placed on stayathome orders for all nonessential business. Jis bolts are characterized in ways that set them apart from other standards because of their size and usage variations. Most assortments come in metal bins or drawers designed for commercial applications. This was a quick way to get a good supply of bolts and nuts for my new house by amazon customer. But if your project requires special bolts, or even if youve broken or damaged the bolt and need a replacement, you need to know how to read bolt grades.
American fastener technology corp offers technical information on fastener standards including metric fastener standards, nut and bolt size standards, and a. Identification of standard utility parts bolts and nuts reaffirmed. Engineers all over the world have been trying to agree on a standard for machine screws since the mid. Din 934 hexagon nuts dimensions, specifications, standard, weights, equivalent and download pdf. Hex bolt diameter is measured on the outside of the threads. An eastern standard jis stands for japanese industrial standard. A short guide to metric nuts and bolts dd thomson rail.
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