5/16-18X1 Unslotted Indented Hex Washer Thread Cutting Screw Type 1 Fully Threaded Zinc An 1000 pcs

10X1 SQUARE DRIVE FLAT HEAD Full Thread SELF DRILLING SCREW ZINC. Self drilling screws have point to cut through material and eleiminate the need to drill a pilot hole. Flat head screws are used when protrusion of the fastener above the mating surface is unacceptable. Typically 100 degree flat or for fastening softer materials, 82 degrees flat.

8X1 1/2 SQUARE DRIVE FLAT HEAD Full Thread SELF DRILLING SCREW ZINC. Self drilling screws have point to cut through material and eleiminate the need to drill a pilot hole. Flat head screws are used when protrusion of the fastener above the mating surface is unacceptable. Typically 100 degree flat or for fastening softer materials, 82 degrees flat.

0X1/8 Round Head Type U Drive Screw Zinc Bake. Drive screw Type-U fasteners permanently fasten metals and plastics, when forced into the work piece using pressure. Round head screws are sometimes perferred over a pan head for its smooth surface and appearance.

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.