The Pinnacle Hardware Assorted Grub Screw Set includes both Hex Head Grub Screws a.k.a. Hex Head Cap Screws and Socket Set Screws.
Hex Head Grub Screws sit on the surface with a thick head, providing ample bearing surface for tightening with a wrench or hex screwdriver. This reduces the chance of stripping the screw head.
Grub Screws are designed to secure an object against another object. They pass through one hole in the object and tightening against another object through another threaded hole at right angle.
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