Iso metric profile external bolt thread internal nut thread basic mm size mm thread designation simple thread designation pitch mm class major dia. The bolt chart provides both us and metric stud sizes. Class 6 nuts are to be used with screws and bolts of property class 6. Aspen fasteners offers one of the most complete ranges of metric screws, bolts and other inch and metric industrial fasteners for immediate delivery from stock. Sae and metric fastener torque specifications rev a july 2016. Thread pitch width across flats width across corners nut height washerface or chamfer dia. The last three pages of this slide show contains a list of common. 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. This data sheet and its contents the information belong to the members of the premier farnell group of companies the group or are licensed to it. Metric thread specification is given through iso standards. Dimensions of cross recessed flat countersunk head machine screws.
Bolts and nuts specification pdf figure 1 illustrates a typical stressstrain relationship of a bolt as a tension load is. They want a 10mm diameter hex head cap screw with a coarse thread 1. Always consult the manufacturers instructions or engineering recommendations when making bolted connections. Supplier of metric nuts, bolts, screws, washers and.
Srjc, engr45, 2012 the nuts and bolts behind engineering. These last two examples demonstrated that in the worst case tight cases, the nut will not bind up on the bolt. Unified finethread series unf or unrf use when more threads per inch are required i. Dimensions for metric hex nutsconform to din 934 unless noted. Metric bolt size chart stud bolt to nut size chart. Iso metric hexagon nuts 100 bsw hexagon nuts and hexagon lock nuts 101. Stainless steel stud bolt and nut size chart ss stud. Structural bolts structural nuts dimensions e s ds 45o k d 15 30o dt d. Use the dimensions of your bolt to determine the appropriate size nut. There is an exception thoughif pitch isnt specified, the fastener is coarse threaded. Jul 17, 2017 nut and bolt gauges are available in most hardware and automotive parts stores and come in both metric and standard sizing. Shoulder bolts also known as stripper bolts are used to create a pivot point. Bolt and nut size dimension for forged components asme pressure vessel connections forging components and reinforced nozzle manufacturing components. Stud bolts with nuts machine bolt with nuts llll stud bolts mach.
Requirements l axis of screw thread basic major diameter minor diameter basic pitch diameter l description a metric machine screw is a straight shank fastener with a metric thread pitch designed to go through a hole or nut that is pre. Metric screws plain black metric socket head cap screws with coarse thread grade 12. Iso metric black hexagon bolts, screws and nuts specification no copying without bsi permission except as permitted by copyright law. Bolts secure material by applying pressure from the head of the bolt. They fit with corresponding tapped holes and nuts to create bolted joints. Free bolt size charts screw charts nut size charts all charts are downloadable and printable pdf formats great online mechanics tools for metric and us bolt, nut and screw charts there comes a time when every mechanic could use a quicker way to help measure their nuts and bolts.
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. Hole sizes 124 thumb and wing screws 125 to 127 b7 studs and nuts stud bolts for pressuretemperature piping 21 general purpose endtoend studs 22 tap end stud bolts 23 double end stud bolts 24. Bolts with a smooth rounded head that has a small square section underneath. Get free 2day shipping on qualified metric, bolts products or buy hardware department products today with buy online pick up in store. There are nineteen standard sizes known as the preferred sizes and ten less commonly used the socalled nonpreferred sizes. Metric hex bolt diameters and thread pitches bolt depot. Astm specifications for bolts nuts washers americal society. If you continue browsing the site, you agree to the use of cookies on this website. Iso metric screw threads are designated by basic diameter and thread pitch. Refer to nut dimensions below for washer face dt general dimensions of structural nuts as1252 1983 nom.
Bolts and tightening there is a lot of confusion amongst bolt suppliers and those using them as to what the different grades mean. Machine screws with no head for screwing all the way into threaded holes. Iso metric hardware specifications table chart engineers. British association screw threads, or ba screw threads, are a largely obsolete set of small screw threads, the largest being 0ba at 6 mm diameter. Our metric stud bolt to nut table is meant to help determine the correct size bolt or nut for your purpose. A short guide to metric nuts and bolts dd thomson rail. A short guide to metric nuts and bolts 2 thomson rail. It is caused by a pushing or pulling force at 90 from the axis of a part. Metric hex nut dimensions sizes chart according to iso 4032. Glossary of fastener terms the bolt supply house ltd. Elevator bolts elevator bolts are often used in conveyor systems. Metric din 933 hexagon head cap screws bolts full thread. But neither the external threads of the bolt nor the internal threads of the nut are exactly. Proof loads and tensile stress metric hexagon bolts.
Length is measured from under the head to the end of the bolt note. The screw and nut sizes are in accordance with bs 3692. Metric nuts and bolts this short guide is intended to give a very basic introduc on to iso metric nuts and bolts. Astm americal society for testing and materialsthe 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. They are unusual in that they were probably the most scientific design of screw, starting with 0ba at 6. For metric bolts strength is according iso 898 mechanical properties of fasteners made of carbon steel and alloy steel described by property classes with designations 4.
Metric nuts choose from metric hex, flange and lock nuts with coarse or fine thread. Metric, heavy hex nuts, astm a194m 2h, plain the information below lists the required dimensional, chemical and physical characteristics of the products in this purchase order. The iso metric screw threads are the most commonly used type of generalpurpose screw. Tolerance zones for bolts, screws and nuts with metric iso thread m10. Pdf iso metric black hexagon bolts, screws and nuts. In actual fact grades are used to define imperial bolts and metric bolts come in classes. Purchase the unique quantity you need from fmw fasteners today. Technical specification for metric hexagonal bolts, nuts. Nut and washer sizes indicate the screw or bolt they fit.
Below are some common spanner wrench sizes for metric screw threads. Metric boltmaster distributor of metric fasteners dfar. United states standard dimensions of bolts and nuts. A194 15 standard specification for carbon steel, alloy steel, and stainless steel nuts for bolts. National standards adoptssets the dimensions and properties in common usage in the australian engineering industry. Use the mudge fasteners bolt head size chart to determine the head size, and wrench or socket size required, for any hex bolt or lag screw you use. Check this is the latest process zone version before use. Dec 21, 2012 dimensions of metric hex nuts metric hex nuts f g h slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Standard metric hex nuts, types styles 1 and 2 per. Nuts m16 and smaller are chamfered on the top and the bearing surface.
Technical specification for metric hexagonal bolts, nuts, coach. View our conversion chart to find out what size heavy hex nut that you need for your job. Metric bolts fasteners the home depot store finder. Bolt head size chart fastener resources mudge fasteners. Selection of bolts of various types, threads and sizes for. Browse metric locknut in the the timken company catalog including part number,thread d1,d3,d4,bn,lockwasher,suitable lockplate no. If your fastening application calls for standard or nonstandard metric fasteners, or if you just have a question about the markings on your fasteners or. Metric nut sizes mm 10 20 30 40 50 60 70 80 90 100 110 120 140 150 160 170 180 190 200 210.
All other dimensions in the standard are derived from the nominal diameter and the. Local source for millions of mro, oem, and safety items. These fasteners are available in metric, bsw, bsf, unc and unf threads. If the order received does not meet these requirements, it may result in a supplier corrective action request, which could jeopardize your status as an approved vendor. Metric thread extended thread size range iso thread height male thread h3 thread height female thread h1 sorted by thread class click here to return to the thread data chart page index. Metric bolt conversion to standard bolt conversion chart. Determine the maximum torque according to bolt nut size and grade. High tensile hexagonal head fasteners are available in 8.
Most commonly used in the bulk production of bolts, screws, nuts for general engineering applications. This section is from the book mechanical drawing selftaught, by joshua rose. Din 933 1987 this standard contains specifications for fully threaded hexagon head screws with coarse metric thread for diameters m 1. 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. How to determine the size, grade, and thread form of a nut or bolt. One hole of the gauge will fit the bolt head or nut snugly be sure youre not mixing up metric and standard gauges and will not allow the bolt head or nut to wiggle inside the gauge. The international system of units iso in 1960 is metric and was one of many attempts this century to standardize metric bolt sizes internationally the iso standards.
Performance data listed are for standard production items only. Correct drill size for tapping metric threads in holes. Ansi hardware menu hardware supplier and manufacturers fastener and screw bolt design, formula and calculations. The iso standards are widely used, and bolt diameters range from 2 to 20mm in three varieties of metric thread pitch. At boltfast, our high quality nuts, bolts, fasteners, studs, washers and.
The data has not yet been checked against the latest revision. The size of a metric screw or bolt is specified as diameter, pitch and length, in millimeters millimeters is abbreviated mm. The following sizes of metric din 933 hexagon head cap screws bolts are available for immediate. Fastener tech data understanding series introduction. Cap screws and hex bolts have heads designed for tightening to exact specifications with ratchets or spanner torque wrenches. Individual sizes should be checked before specifying any. Commercial products page dimensions iso metric mild steel hexagon bolts, screws and nuts 1 iso metric mild steel cup square bolts 2 iso metric mild steel set screws 3. As a master distributor of metric fasteners we take pride in providing metric nuts and bolts for clients with convenient access to the highest quality metric fasteners for aerospace, military, scientific as well as industrial grade fasteners, including dfar compliant metric nuts and bolts. Nonstock items may vary due to variables in methods of manufacture. First you want to pick a nut specification that is recognized by the bolt. The following tables provide hex nut and jam nut dimensions per asme ansi b18. A style 1, heat treated fastener with a metric thread pitch. The 8thread series 8unr or 8un is used only for sizes over 1 in.
Skf lock nuts of kmk design lock quickly and safely without the need for a locking washer and keyway. The situa on is almost as complex with metric nuts which come in a wide variety of types full, thin, nyloc, castellated and 5 strength grades as well. Hex bolts carriage bolts lag bolts set screws bolts with a hexagonal head with threads for use with a nut or tapped hole. It is intended for those working in plant and machinery maintenance to give enough informa on to ensure that correct replacement parts are iden. Size thread inlbs nm inlbs nm inlbs nm inlbs nm inlbs nm inlbs nm 4.
Bolt diameters under a 14 are in number sizes from 0 to 12. The following are to links of iso metric hardware specifications table charts. Structural bolts have a shorter thread length according to the standard, so the threads can be eliminated from the shear planes of the connection. Spirol converts wrench size and thickness to decimals for description. Standards for dimensions and tolerances are issued. J bolts shoulder bolts j shaped bolts are used for tiedowns or as an open eye bolt. The width across flats of nut shall be the distance measured, perpendicular to the axis of nut, overall be tween two opposite sides of the nut in accordance with the notes on respective dimensional tables. In preparing this guide to torque values, the following basic assumptions have been made. Sizes not listed can be manufactured within 710 working days. So if you do find a 2a bolt that will not thread through a 2b nut of the same tpi, then one or both may be out of spec. Third measure length length is measured from behind the head to end, except for flathead is measured total length. Metric bolt conversion data for industrial bolts rods, machine screws and small diameter fasteners from raaj sagar steels includes metric to standard bolt conversions. Technical specification for metric hexagonal bolts, nuts, coach screw, and flat washers. Iso metric hexagon nuts, including thin nuts, slotted.
Understanding nut and bolt specifications, version1. Sizes with a diameter m24 are minimal property class 50. Mlid steel countersunk square plough bolts mlid steel countersunk nib bolts 6. They were, and to some extent still are, used for miniature instruments and modelling. Fastenerdata metric nut comparison fastener specifications. Bolt is a threaded rod with 2 heavy hexagon nuts, while the hex bolt has a head. Nuts m20 and larger may be double chamfered, or have a washer face on one side and a chamfered surface on the opposite side. Mseries metric system of diameters, pitches, and toleranceallowances. Fastener grade us or class metric refers to the mechanical proper. For nut sizes see iso metric mild steel bolts, screws and nuts.
The nut remains perpendicular to the shaft when the insert is pressed against the shaft thread. The kmk nut is locked in position with a steel insert, an integral part of the nut thread, which presses against the shaft thread. Metric millimeter bolt and nut substitutions will be allowed in. Fastenal offers sameday service on thousands of construction and industrial supplies. 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. Width across flats wrench size and corners, nut height thickness and thread pitch dimensions are given for nut sizes between m1.