CSK flat head cap screw

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Stainless Steel DIN7991 CSK Flat Head Hex Head Socket Bolts CSK head cap screw


An Allen bolt, or hexagon socket head cap screw, is a threaded fastener with a cylindrical head having a hexagonal recess. It’s driven by an Allen wrench (hex key). Ideal for tight spaces and low-profile needs, it’s widely used in machinery, electronics, and furniture. Available in materials like steel or stainless steel for different strength demands.

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