5/16-18 x 5/8 Inch Coarse Plain Case Hardened Steel Cup Point Square Head Set Screw Best Seller They are often made of

They are often made of steel or brass and can be either male or female fittings

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5/16-18 x 5/8 Inch Coarse Plain Case Hardened Steel Cup Point Square Head Set Screw Best Seller They are often made ofCup point set screws feature a hex drive at one end and a cup shaped indentation at the other. The most commonly used set screw head style the thin edge of the cup end digs into the contact surface for high holding power. It is useful for fast permanent and semi permanent placement in applications where some indentation left by the cup end is acceptable.