6-20 x 3/4 Phillips Flat Self Tapping Screw Type B Fully Threaded Zinc 10-24 NM They are hot-dipped galvanized for

They are hot-dipped galvanized for superior corrosion resistance and durability

The 4-4 size indicates that the nut has a nominal diameter of 4 inches and a thread size of 4 inches

this machine screw is ideal for use in demanding environments

It has a hex head for easy driving and a sharp point for easy starting

6-20 x 3/4 Phillips Flat Self Tapping Screw Type B Fully Threaded Zinc 10-24 NM They are hot-dipped galvanized forThese 6 20 x 3 4 Phillips flat self tapping screws are made of steel and have a zinc finish. They are fully threaded and have a type B point. These screws are designed for use in metal applications and are self drilling, eliminating the need for a pilot hole. They have a Phillips drive and a flat head. These screws are sold in packs of 100.