Dimensions for standard hex cap screws length of a cap screw is measured from the underhead bearing surface to the extreme end of the screw hex cap screws asme b18. How do i determine the wrench size or hex key size for hex head bolts and socket heads. Iso socket head screw size data table chart iso din bs en. A hex key otherwise known as an allen key is required to. Dimensions of counterbore and bolt holes for hexagon socket head cap screws technical data hexagon socket head cap screws excerpts from jis b 1176 1999. Socket head cap screws socket screws and set screws.
Socket head cap screw shcs screw and bolt dimensions, hole size, counter bore size, head measurement, body dimensions, shcs hex socet size, shcs allen wrench size. Armstrong metalcrafts does prototyping and produces devices that stimulate the imagination. The socket head enables driving where there is not sufficient space for wrenches or sockets. There is a hex socket in the head that accepts a hex wrench to tighten the socket cap screw. Hexagon socket countersunk head screws en iso 10642 din 7991 grade 10. Dimensions with a tolerance equal to or less than 0. They host a hexagonal recess and are driven using an insert bit or a hex wrench, making the screws more efficient than the slotted screw products as the hex socket drive has more resistance to cam out and can be used with power drivers to enable faster installation. Torque values for hex head metric screws free pdf file. Nominal screw sizes m5 and larger have six drilled holes spaced 60 degrees apart unless the purchaser specifies two drilled holes. Socket head cap screws n 1960 series n dimensions n mechanical properties head markings may vary slightly depending on manufacturing practice.
Sockets cap ss fastener express socket head cap screws. Diamond knurls, unbrako, and unb are recognized identifications for 14 diameter and larger. Suggested seating torque values, only apply to metric grade 12. B7 alloy heavy hex head cap screws designed for high temperature, high strength applications, these screws meet astm a193 grade b7 specifications. If the order received does not meet these requirements, it may result in a supplier corrective action request, which could jeopardize your. Holokrome socket head cap screws contribute in important ways in carrying out modern design techniques which call for smooth contours and surfaces, elimination of clumsy, bulky parts and use of lighter constructions as they apply to flanges, lugs, pockets, and cover plates. Performance data listed are for standard production items only. Dahcjftgk body diameter head diameter head height top chamfer or radius hex socket. Unless specified below, current revisions of national or international standards.
The most important reasons for the use of socket head cap screws in industry are safety, reliability and economy. Metric socket head cap screws din 912 bs 4168 iso 4762 materials and finishes steel 12. Socket head cap screws are commonly used in machine assembly, especially for removable panels and parts. The most common standard socket cap screw is to din 912 in 12. Product standards require the manufacturers head marking to appear on the top of all cap screws 14 diameter and larger. Socket head cap screws din 912 iso 4762 also known as an allen screw or allen bolt, or simply a cap screw. Looking for downloadable 3d printing models, designs, and cad files. A screw is a type of fastener, in some ways similar to a bolt typically made of metal, and.
Metric socket head cap screws size table engineers edge. The above are types of screws with a cylindrical head and an internal hexagonal drive. Cap screws of a length 3d or greater, where d equals the nominal diameter of the screw, are subject to tensile strength, yield strength, elongation and reduction of. Inch series flat socket head cap screws continued mechanical properties and tightening torques nominal size basic screw diameter tensile strength pounds min. The information available from our sources is usually sufficient for all computer related drill or screw requirements world wide. Yet if you have an application with a lot of debris, you may want to select a hex head bolt or hex head cap screw, as they dont have a socket drive. The computeraided design cad files and all associated content posted to this website are created, uploaded, managed and owned by third party users. Ansi socket head screw engineering dimensional data table chart. Inch series flat socket head cap screws nominal size basic screw diameter d body diameter min. Socket head cap screw 3d cad model library grabcad. To meet the increasing demand for fine thread socket head cap screws, we have added many sizes from m8 x 1 through m20 x 1. Drilled head metric hexagon socket head cap screws normally are not available in screw sizes smaller than m3 nor larger than m36. Metric socket head cap screws view mold torque values listed are for plain screws.
Imperial supplies has a large selection on hand, at incredible prices. The tabulate lg values are maximum and represent the minimum design grip length of the screw. Unbrako socket cap screws offer resistance to a greater degree than any other threaded fasteners you can purchase offtheshelf. Socket cap screws to din 912 are often referred to as allen head bolts. Socket head cap screw, alloy, black oxide this product standard contains the required dimensional, mechanical, performance, and chemical characteristics of the products shown in this purchase order as applicable to the product. Lb is the minimum body length and is the length of the unthreaded cylindrical portion of the shank. Socket head cap screw 1960 series socket low head cap screw socket head shoulder screw countersunk socket head screw button head socket screw flange button head socket screw socket set screws. Each cad and any associated text, image or data is in no way sponsored by or affiliated with any company, organization or realworld item, product, or good it may purport to portray. Socket head cap screw 58 sizes 3d cad model library grabcad. Using fewer socket screws of the same size can achieve the same clamping force in the joint.
Holokrome socket head cap screwsdimensions 1960 series. Call us today to get exactly what you need with socket screws. For partially threaded screws, manufacturing standards allow thread lengths to vary between the minimums and maximums listed in the tables below. Socket head cap screw shcs screw and bolt dimensions, hole. Machine screws, sheet metal screws, all thread rod, carriage bolts, lag screws, structural a325 bolts, concrete wedge anchors, b7 studs, tap end studs, double end studs, stainless hose clamps, metric course and ne thread. Socket head cap screws are a headed and externally threaded part designed for insertion through a close tolerance, internally tapped hole and mated with a nut. Heavy hex head cap screw dimensions alma bolt company. The m3 and m4 nominal screw sizes have two drilled holes spaced 180 degrees apart. Fastenerdata socket cap screws fastener specifications.
Hexagon socket head cap screws zincplated din 912 8. A joint requiring twelve 8 grade 5 hex heads would need only 7 unbrako socket head cap screws. Button head socket cap screw dimensions screws may be fully or partially threaded. Instead of the usual range of 1220 nmm2, minimum tensile strength levels of unbrako cap screws are consistently 0 nmm 2. Socket head cap screw socket head cap screw recommended tightening torque class 12. The computeraided design cad files and all associated content posted to this website are created, uploaded. If such holes are not countersunk, the heads of screws may not seat properly or the sharp edges on holes may deform the fillets on screws thereby making them susceptible to fatigue in applications involving dynamic loading. Use them size for size and there are fewer holes to drill and tap and fewer screws to buy and handle. All three reasons are directly traceable to the superior performance of socket screws vs. Set screws often have a head smaller than the outer diameter of the screw. Machine, sheet metal, and thread cuttingthread formingthread rolling screws technical information. Get free 2day shipping on qualified socket head cap screws products or buy hardware department products today with buy online pick up in store.
Early wood screws were made by hand, with a series of files, chisels, and. For screw over 1 inch in diameter, fully threaded when nominal length, l socket head cap screws metric body and grip lengths. Low head socket cap screws are created to din 6912 and are often referred to as allen head bolts. Cap screws, hex cap screws at instock fasteners the lowprice easytouse source for industrial and construction fasteners. Thr ead lengt b diameter of unthreaded shank ds hex socket width across corners. Manufactured from 4140 steel, they are clearly marked for ease of inspection. Drill and counterbore sizes for socket head cap screws per.
Tension on the socket cap screw is induced by rotation of the screw head. The self colour screw surface finish for self colour is black oxide after heat treatment. Socket head cap screws n 1960 series n dimensions mechanical. The above specification is for coarse threads only. Socket head cap screws inch socket head cap screws. Hex cap screws dimensions atlanta rod and manufacturing. It is considered good practice to countersink or break the edges of holes that are smaller than f max. Socket head cap screw thread lengths asmc industrial. Metric socket countersunk head screws din 7991 bs 4168 iso 10642 materials and finishes steel 10.
Cad files and all associated content posted to this website are created, uploaded, managed and owned. Engineering ansi hardware design data engineering metric hardware design data. A comprehensive catalogue of unbrako socket screws and related products. Hexagon socket head cap screws, din 912 valenta zt s.
Inch series button head socket cap screws continued standard screw length increments nominal screw length standard length increment. Socket head cap screws, 188 stainless steel, manufactured in the usa the information below lists the required dimensional, chemical and physical characteristics of the products in this purchase order. Socket head cap screws are a more modern alternative standard machine fastener to the standard hexagon headed bolt or setscrew, as found on much modern machinery. Socket head cap screws are the solution for tight clearance, light weight and secure fastening. Counterbored holes dimensions inch usa socket head cap screws. Nominal size and thread diameter d ad i am et r d k tr ni a max. Low head socket cap screws din 6912 fastenright ltd.
Screw size body diameter hex key size head height head diameter max. Choose the right cap head for your specific application. Socket cap, set screws, hex and spline keys inch series. Screw plain 102602 stainless steel 188 inch 104 stainless steel 316 inch. Stainless socket screws have less tensile and yield strength than alloy sockets, but superior corrosion resistance. Socket head cap screw size chart this chart contains information on number, metric and fractional number socket head cap screws, along with tap drill information. Socket head cap screws 51 button head and flat head socket cap screws 52 socket set screws 53 hexagon keys and bits 54 socket head shoulder screws, dowel pins, and slotted set screws 55 square head set screws and socket pipe plugs 56 physical properties of sockets 56 point terminology 57 flange 12point screws 58 to 59. How do i determine the wrench size or hex key size for hex. These properties are tested only on machined specimens when the testing machine cannot provide for full testing of the parts. Basic screw diameter, body diameter d, head diameter a, head. If all else fails, you may want to use our drill size conversion table or our tap drill size calculator. Full dimensional tables including product photographs and drawings are available by clicking on the item.
Ansi hardware design guides iso metric hardware design guides. At the same time ductility and fatigue resistance are not. View our socket screw products and online screw catalog for the ease of ordering with us. They have a round cap with a hex head and are tightened with a socket wrench drive. Unbrako socket head cap screws have the highest levels of strength and fatigue resistance in the industry. These screws are the best choice for applications with limited installation access or clearance. All data is correct to the best of our knowledge, however tr cannot be held responsible for any errors or omissions. Socket head cap screws, 188 stainless steel, manufactured in.
This international standard specifies the characteristics of hexagon socket head cap screws with metric fine pitch thread with nominal thread diameters, d, from 8 mm up to 36 mm and product grade a. They host a hexagonal recess and are driven using a hex wrench or insert bit, which makes these screws much more efficient than slotted drive products due to a higher resistance to camout and the ability to be used with power drivers. Socket head cap screw size chart if all else fails, you may want to use our drill size conversion table or our tap drill size calculator. This table includes maximum and minimum screw head diameter and height, slot width and depth as well as maximum screw shaft diameter information. Counterbored hole dimensions for us socket head cap screws. These are classic metric screws with cylinder head and hexagon socket also known as shcs. Ansi socket head screw engineering dimensional data table chart per asme ansi b18. Greater tensile strength than same size grade 5 or 8 hex head cap screws while requiring less surface area due to the internal wrenching. Socket head cap screws metric body and grip lengths. Iso socket head screw size data table chart iso 4762 iso hardware engineering data ansi hardware engineering data iso din bs en 4762 specifies the characteristics of hexagon socket head cap screws with coarse pitch thread from m1,6 up to and including m64 and product grade a.
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