5/16X2 Medium, Standard Duty Coil Pin Plain Steel And Oil U188 It has a hex washer

It has a hex washer head with an un-slotted drive

this screw features a full thread design that provides maximum holding power and resistance to loosening

while the oval head ensures a secure and flush fit

The slot in the head is 1

5/16X2 Medium, Standard Duty Coil Pin Plain Steel And Oil U188 It has a hex washer5 16" x 2" Medium, Standard Duty Coil Pin, Plain Steel And Oil. This coil pin is made of plain steel and has been oil hardened for increased strength and durability. It is designed for use in a variety of applications, including securing gears, pulleys, and other rotating components. The coil pin has a diameter of 5 16" and a length of 2". It is sold in packs of 100.