6-20 x 5/8 Slotted Indented Hex Washer Self Tapping Screw Type B Fully Threaded Zinc PW37 It is made of zinc-plated

It is made of zinc-plated steel and features a nylon insert that helps to prevent the nut from loosening due to vibration or movement

This 1/4-20 Flex Type Hex Lock Nut is designed with a thin height and light cadmium and wax finish

while the flat head sits flush with the surface for a clean

The screw's 5/16-18 thread size indicates a diameter of 5/16 inches and 18 threads per inch

and it meets ASTM A307 specifications for quality and durability

6-20 x 5/8 Slotted Indented Hex Washer Self Tapping Screw Type B Fully Threaded Zinc PW37 It is made of zinc-platedThese 6 20 x 5 8 Slotted Indented Hex Washer Self Tapping Screws Type B are fully threaded and zinc plated. They are designed for use in a variety of applications, including metal, plastic, and wood. The slotted indented hex washer head provides a secure grip, while the self tapping design eliminates the need for pre drilling. These screws are available in a variety of lengths and finishes to meet your specific needs.