Machine Screw Washers

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.

Stainless Steel Split Lock Washers are manufactured with a trapezoidal cross section that deflects under load and can be used with or without a Stainless Steel Flat Washer. They provide marginal resistance to vibration loosening and are ideal in applications where fasteners have a tendency to rotate or lose friction. Stainless Steel Split Lock Washers are forged from 18-8 stainless steel and are covered by the ASME B18.21.1 standard. Special Features: Trapezodial Cross Section, Corrosion Resistant, Chemical Resistant Applications: Corrosive Environments, Marine Applications, General Purpose

Used in applications with nuts and bolts. The flat washer provides a greater bearing surface which helps prevent a nut or bolt head from tearing through the material. Flat washers are commonly used in decks and fence building.

8X1 1/2 Phillips Indented Hex Washer Self Tapping Screw Type A B Fully Threaded Zinc. Type AB thread for use in the thinner sheet metal like used in appliances. Indented hex washer head offers advantages of hex head, plus greater protection to mating surface.

Stainless Steel Fender Washers differ from Stainless Steel Flat Washers in that their outside diameters are much larger in proportion to their center holes. With this design a fender washer can be placed under the head of a bolt or nut to help distribute forces applied when tightening or to cover an oversized hole. Special Features: Load Bearing Surface, Corrosion Resistant, Chemical Resistant Applications: Corrosive Environments, Marine Applications, General Purpose