5-40 x 1/4 Phillips Pan Taptite Alternative Thread Rolling Screw Fully Thrd Zinc & Wax 2 1/2 5/16 Internal Tooth Lock Washer

5/16 Internal Tooth Lock Washer Black Oxide is a high-quality washer designed to prevent nuts and bolts from loosening due to vibration or other external forces

This 12-24 x 5/8 Phillips pan full thread machine screw is made of steel and has a black oxide finish

The self-tapping threads create their own mating threads in the material being fastened

which means that it has a flat head

5-40 x 1/4 Phillips Pan Taptite Alternative Thread Rolling Screw Fully Thrd Zinc & Wax 2 1/2 5/16 Internal Tooth Lock WasherThe 5 40 x 1 4 Phillips Pan Taptite Alternative Thread Rolling Screw Fully Threaded Zinc & Wax is a high performance screw designed for use in a variety of applications. It features a Phillips pan head for easy driving, and a thread rolling design that creates strong, vibration resistant threads in metal. The screw is fully threaded for maximum holding power, and is coated with zinc and wax for corrosion resistance. It is ideal for use in automotive,