14 x 5/8 MS21318 Military Round Head Type U Drive Screw Cadmium MPU 10-13 x 1 1/2 Slotted

10-13 x 1 1/2 Slotted Oval Full Body Wood Screw Zinc:

The square drive head allows for easy driving with a power tool

and the PT alternative thread provides a strong hold

They have a slotted drive and a flat head

14 x 5/8 MS21318 Military Round Head Type U Drive Screw Cadmium MPU 10-13 x 1 1/2 SlottedThe 14 x 5 8 MS21318 Military Round Head Type U Drive Screw Cadmium is a high strength, corrosion resistant screw designed for use in demanding military applications. It is made of cadmium plated steel for superior durability and resistance to wear and tear. The screw has a round head with a slotted drive, and its Type U thread provides excellent holding power in a variety of materials. It is commonly used in aircraft, vehicles, and other military