4-40 x 516 Phillips Pan Split Lock & Narrow Flat Washer Sems Fully Threaded Zinc KTF which means that it can

which means that it can be used with screws or bolts that have a 4-40 thread

The truss head provides a low profile and a large bearing surface

Their hexagonal shape allows for easy tightening and loosening using a standard wrench or socket

It features a square head for easy installation and removal

4-40 x 516 Phillips Pan Split Lock & Narrow Flat Washer Sems Fully Threaded Zinc KTF which means that it canThese 4 40 x 5 16 Phillips pan head split lock and narrow flat washer sems fully threaded zinc screws are designed for use in a variety of applications. The Phillips pan head provides a secure hold, while the split lock and narrow flat washer help to prevent the screw from loosening. The fully threaded design allows for a strong hold in a variety of materials. These screws are zinc plated for corrosion resistance.