4-40 x 3/8 Phil Flat Taptite Alternative Thread Rolling Scrw Fully Thread Black Oxide & Wax 1 1/2-6 N1610 It has a hex head

It has a hex head for easy driving and a 3 1/4-inch length

These 6-20 x 3/4 Phillips oval self-drilling screws are designed for quick and easy installation into metal

The split lock washer integrated into the design prevents loosening due to vibration or movement

The 3/8-16 Hex Jam Nut Black Zinc is a versatile and durable fastener designed to secure threaded bolts and studs in a wide range of applications

this screw ensures a strong and secure hold in various materials

4-40 x 3/8 Phil Flat Taptite Alternative Thread Rolling Scrw Fully Thread Black Oxide & Wax 1 1/2-6 N1610 It has a hex headThe 4 40 x 3 8 Phil Flat Taptite Alternative Thread Rolling Screw is a fully threaded screw with a black oxide and wax finish. It is designed for use in metal applications and has a Phillips flat head. The screw is self tapping, which means it can create its own threads in the material it is being inserted into. The black oxide finish provides corrosion resistance, while the wax finish helps to reduce friction during installation. The screw is 3 8