Socket cap diameter is measured on the outside of the threads. Low head socket cap screws, metric, black oxide, class 10. The most important reasons for the use of socket head cap screws in industry are safety, reliability and economy. Astm a574 alloy steel astm f837 stainless steel dimensions.
If the order received does not meet these requirements, it may result in a supplier corrective action request, which could jeopardize your. Flanged socket head cap screws from ita fasteners can be used on moderately heavy loads. This chart contains information on number, metric and fractional number socket head cap screws, along with tap drill information. Size body diameter head diameter head height hexagon socket size key engagement thread length. The close fit is normally limited to holes for those lengths of screws that are threaded to the head in assemblies where only one screw is to be used or where two or more screws are to be used and the mating holes are to be produced either at assembly. Flat and oval head screws are angled under the head to. Metric socket head cap screws metric socket products.
Socket head cap screws weight chart fasteners chart. The term socket head cap screw typically refers to a type of threaded fastener whose head diameter is nominally 1. In stock at store today 554 choose your preferred store. Head height is 50% of a standard socket head and the socket size is smaller. Socket head cap screws hqmarietta 1076 king industrial dr. Counterbored holes dimensions inch usa socket head cap screws. Head and body dimensions alloy and stainless asme b18. Socket head cap screws prospect fastener corporation.
Socket head cap screw specifications for dimensions. Inch series flat socket head cap screws continued mechanical properties and tightening torques nominal size basic screw diameter tensile strength pounds min. The above are types of screws with a cylindrical head and an internal hexagonal drive. Metric socket head cap screws din 912 bs 4168 iso 4762 materials and finishes steel 12.
Closely controlled fillet between head and body for maximum fatigue strength meets asmeansi b18. Fastenerdata socket cap screws fastener specifications. Alloy steel rc 3843 stainless steel rb 80 rc 33 concentricity. Install in a counterbored hole or above the surface. Head measurement, body dimensions, shcs hex socet size, shcs allen wrench size. Similar to a button head socket screw, but with an 82degree countersunk flat head. Flat head socket cap screws socket head shoulder screws. Steel socket head cap screws with drilled head socket head cap screws are ideal for precision work with close tolerances and applications needing a well tooled appearance.
Std socket head cap screw, alloy steel, thermal black finish. Socket hex head cap screws are externally threaded machine screws with an internal hex socket drive which corresponds to a hex key or allen wrench. The most common standard socket cap screw is to din 912 in 12. Socket cap head screws or allen screws have a socket for use with an allen key also known as a hex key or an accuscrews socket drive bit. Socket head cap screw specifications for dimensions, material. Ansi socket head screw engineering dimensional data table chart per asme ansi b18. Using the following formula as a reference, ensure that the bearing surface pressure due to screw tightening does not exceed the permitted surface pressure of the intended fastening material. Cup point set screws have a thin edge that digs into the contact surface for a secure hold on a wide range of surfaces. Counterbore and bolt hole sizes for socket head cap screws x p. Full dimensional tables including product photographs and drawings are available by clicking on the item. Contact american fastener today for a custom quote. A socket cap screw is a type of cap screw with a cylindrical head and hexagonal allen drive hole.
Ansi socket head screw engineering dimensional data table chart. Counterbored hole dimensions for us socket head cap screws. Although low head cap screws are made of the same material as the standard cap screw, socket dimensions prevent it from being preloaded to the same level as the standard cap screw. The information available from our sources is usually sufficient for all computer related drill or screw requirements world wide.
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. Button head socket cap screw dimensions screws may be fully or partially threaded. Socket head cap screw socket head cap screw loading. A socket cap screw, also known as a socket head cap screw, socket screw or allen socket bolt, is a type of cap screw with a cylindrical head and hexagonal drive hole. Hex sizes and head dimensions inch sizes alloy steelinch sizes metric sizes metric sizes stainless steelinch sizes screw size m2 m2. Also known as dogpoint set screws, these set screws have a protruding tip that locks within a mating hole or slot to. Socket cap screws are popular in tight spaces where an allen wrench would fit when another type of drive may not.
For partially threaded screws, manufacturing standards allow thread lengths to vary between the minimums and maximums listed in the tables below. Inch uncf have no american standard and are not shown in the british standards. These screws can be manufactured from a variety of materials, including aluminium, brass, peek thermoplastic, phosphor bronze and titanium. Socket button head cap screw, 3816 x 1, alloy steel, black oxide, hex socket quantity. We are a worldwide supplier of industrial fasteners offering industrial sockets and socket head cap screws.
Cap screws shall be fabricated from austenitic corrosion resistant steel of types 188, aisi 384, or equivalent types, and shall have a minimum tensile strength of 80,000 psi for sizes up to and including 58 in and 70,000 psi for sizes larger than 58 in. Socket head cap screw specifications for dimensions, material and mechanical properties. Drill and counterbore sizes for socket head cap screws per. Socket head cap screws fine, socket head cap screws. Size shoulder diameter head diameter head height hexagon socket size key engagement thread pitch thread length. Since the head bearing surface area is small, bearing surface pressure become high. Also known as allen bolts they are driven with a hex key or allen wrench. Socket head cap screws are bolts cap screws with a hexagonal recessed drive. Because the screws are internally wrenched, they require less surface area and are thus ideal for projects where there is insufficient space for traditional wrenches or sockets.
Socket head cap screw thread lengths asmc industrial. Similar thread design as a socket cap screw, but the domeshaped head is wider and has a lower profile. Din 933a2a4 iso 4017 hex head cap screw full thread. Whether its for standard metric or imperial measurements, our simpletoread bolt thread length chart makes understanding thread length easy. Bo socket head cap screw, alloy, black oxide this product standard contains the required dimensional, mechanical, performance, and chemical characteristics of the products shown. Socket head cap screws 1960 series n dimensions n mechanical properties n application data notes material.
If all else fails, you may want to use our drill size conversion table or our tap drill size calculator. Apr 04, 2016 nas51 datasheet pdf socket head cap screw. The self colour screw surface finish for self colour is black oxide after heat treatment. Thread d m1,6 m2 m2,5 m3 m4 m5 m6 m8 m10 m12 m14 m16 m20 m24 m30 m36 m42 m48 m56. These bolts are commonly used in machinery and assemblies and very popular in the aviation. The above specification is for coarse threads only. Socket head cap screws also known as allen head screws have a cylindrical head with a flat chamfered top surface, knurled cylindrical sides and hexagon recess. Socket cap, alloy steel black oxide finish bolt depot. Low head socket cap screws are used where a lower head profile is required or where space is not available for a full depth counterbore. Socket head cap screw dimensions and specifications. With a deeper drive than flat and rounded head screws, socket head screws withstand more torque for a tighter hold. For screw over 1 inch in diameter, fully threaded when nominal length, l.
Socket head cap screws n 1960 series n dimensions mechanical. Inch series button head socket cap screws nominal size d basic screw diameter a head diameter max. The tabulate lg values are maximum and represent the minimum design grip length of the screw. Socket head cap screws, 188 stainless steel, manufactured in. The drilled head allows you to secure two or more fasteners together to prevent unwanted loosening. A domed head sits above the surface of your material. M spline socket size nominal j hexagon socket size nominal t key engagement min. Socket head cap screw shcs screw and bolt dimensions, hole. Make frequent adjustments with minimal surface damage. 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. Includes screws such as pan, button, binding, and truss head screws. Socket head cap screws are commonly used in applications in which it is necessary to recess the head of the fastener, as well as applications where space limits the size of the head.
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