5/16-9X1 1/2 A/F.428-.437 Head Hgt.200-.230 Unslot Indent Hexwash Lag Screw Full Thread Zinc 1000pcs

10-32X1/2 Slotted Hex Washer External Sems Machine Screw Fully Threaded Zinc Bake. Hex washer head offers advantages of hex head, plus greater protection to mating surface.

10-24X1/2 Unslotted Indented Hex Washer Thread Cutting Screw Type 23 Fully Threaded Zinc. Thread-Cutting Type-23 screws provide excellent chip clearance with minimum tightening torques. Steel: Used in cast iron and zinc, aluminum die castings, and plastics. Stainless: Material into which the screw is to cut threads should have a lower hardness. Indented hex washer head offers advantages of hex head, plus greater protection to mating surface.

3/8-16X1 Unslotted Indented Hex Washer Thread Cutting Screw Type F Fully Threaded Zinc. Thread-Cutting Type-F threaded screws are used in heavy gauge sheet metal, aluminum, zinc and lead die castings, cast iron, brass and plastic. In stainless steel, material into which the screw is to cut threads should have a lower hardness by 10-20 Rockwell hardness. Indented hex washer head offers advantages of hex head, plus greater protection to mating surface.

1/2-13X1 1/4 Slotted Indented Hex Washer Thread Cutting Screw Type F Fully Threaded Zinc. Thread-Cutting Type-F threaded screws are used in heavy gauge sheet metal, aluminum, zinc and lead die castings, cast iron, brass and plastic. In stainless steel, material into which the screw is to cut threads should have a lower hardness by 10-20 Rockwell hardness. Indented hex washer head offers advantages of hex head, plus greater protection to mating surface.

12X1/2 Unslotted Indented Hex Washer High Low Screw Fully Threaded 18-8 Stainless Steel. High-Low thread for use in plastic, nylon, wood or other low-density materials. Thread design reduces driving torques, enhances resistance to thread stripping, improves pullout strength and lessens the risk of cracking the work piece. Indented hex washer head offers advantages of hex head, plus greater protection to mating surface.