A heat-treated alloy steel for applications where very high strength and hardness are required. Class 12.9 alloy steel black oxide finishĪ high strength heat treated alloy steel.Zinc plated for moderate corrosion resistance. Ideal in salt water and chlorine environments.Ī high strength heat treated alloy steel. Allen (hex socket) drive is a six-sided recess for use with an Allen wrench (hex key).Īlso known as A-2 stainless, 18-8 is the most common grade of stainless steel for general use.Īlso known as A-4 stainless, 316 is a highly corrosion resistant grade of stainless steel. Please contact us before placing your order if this dimension is critical to your application.Socket caps have a small cylindrical head with tall vertical sides. In accordance with DIN standard 7991, Accu's Socket Countersunk Screws are manufactured to a minimum specified thread length. Lengths are available from 1/8 inch up to 10 inches. Imperial Countersunk Socket Screws are also available in diameters from #0 to 7/8 inch. Metric SizesĪccu’s Metric Socket Countersunk Screws are available in thread sizes ranging from M2 to M24, and lengths from 3mm up to 200mm. Security Screw Variantįor applications requiring a tamper-proof drive, this component is also available in a security variant, which can be found in Accu's Security Socket Countersunk Screws range. MaterialsĬountersunk Socket Head Screws can be manufactured from a range of materials, including A2, A4 and Bumax Stainless Steel options as standard.Īccu also supplies Socket Countersunk Screws in 10.9 and 12.9 High Tensile Steel, with materials such as Titanium, Aluminium and PEEK available through our custom manufacture service.Ĭhemical Blackening is available on Stainless Steel screws, with Thread Locking Patches and various other finishes also available on request. Our range of Socket Countersunk Captive Screws are designed to be used in conjunction with Captive Washers to prevent the screws from falling out of housing assemblies and conform to EU Safety regulations. Countersunk Captive FastenersĬaptive screw variants of Accu's Metric Countersunk Screws are available in A2 and A4 Stainless Steel, with other materials such as thermoplastic PEEK available on request. With screw sizes M2, M2.5 & M3 (Micro) and M4, M5 & M6 (Small) as screw kit options, engineers and DIYers alike can be ready for their next project with our ultimate fastener kits. Metric Socket Countersunk Screw KitsĪccu ProKits, our high quality range of fastener kits, feature Socket Countersunk Screw Kits, available in A2 Stainless Steel and Marine Stainless Steel. Ĭountersunk Screws are designed to be used alongside pre-drilled countersunk recesses, which can be made with the use of angle cutters called Countersinks. The socket head of these screws makes them ideal for use alongside Accu’s Hex Drive Bits or Allen Keys & Wrenches. Marine Stainless Steel (A4) Material Specificationĭiscover more about the Metric Socket Countersunk Screws range.Ĭountersunk Socket Head Screws feature a countersunk head type, which allows them to sit flush with their target housing.The M20 x 35mm Socket Countersunk Screws (ISO 10642) - Marine Stainless Steel (A4) has the following features: M20 x 35mm Socket Countersunk Screws (ISO 10642) - Marine Stainless Steel (A4) Description
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