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  • GRADE 5 HHCS, PLAIN


    The most common cap screw is the hex cap screw. This cap screw is a headed and externally threaded part designed for insertion through a close tolerance internally tapped hole and mated with a nut. Tension is induced by rotation of the cap screw head. There is often a washer forged under the head. The point at the threaded end of the cap screw is machined flat so it will fit into a drilled hole. Cap Screws usually have closer tolerances than do bolts.

  • HEX HEAD SERRATED FLANGE SCREW, GRADE 5, ZINC CR+3


    Serrated hex flange bolts have a ridge or skirt (flange) around the bolt head that distributes the clamping load when the bolt is tightened. The flange works like a washer. Flange bolts are sometimes called frame bolts.

  • SLOTTED FLAT COUNTERSUNK HEAD CAP SCREW, PLAIN, LOW CARBON


    Slotted flat cap screws have a flat top surface, milled slot, and a conical bearing surface with a head angle of 82°. They are used for assembling close tolerance machinery where head clearance is critical.