8-32 x 1/2 Slot Indent Hex Washer Serrated Thread Cut Screw Type F Full Thread Zinc KWMS5 They feature a square recess

They feature a square recess drive for easy driving

These 4-40 x 3/8 Phillips pan split lock washer sems are fully threaded and made of 18-8 stainless steel

The screw has a Phillips head and a pan head style

and it is self-drilling

The 5/16-18 x 5/8 Serrated Hex Flanged Washer Full Thread Grade 5 w/Head Markings Zinc is a type of fastener that is used to secure two or more pieces of material together

8-32 x 1/2 Slot Indent Hex Washer Serrated Thread Cut Screw Type F Full Thread Zinc KWMS5 They feature a square recess8 32 x 1 2 Slot Indent Hex Washer Serrated Thread Cut Screw Type F Full Thread Zinc is a type of screw that is used in a variety of applications. It has a slotted head with a hex washer, and a serrated thread that helps to prevent it from loosening. The screw is made of zinc plated steel, which provides excellent corrosion resistance. It is a full thread screw, which means that the threads extend the entire length of the screw. This type of screw is