6-20 x 1 3/8 Phillips Bugle Head Full Thread Self Drilling Drywall Screw Black Phosphate 1 1/8-7 NE They are made of durable

They are made of durable black zinc and bake material

this screw offers excellent durability and strength in harsh environments

It meets the specifications of ASTM A307 Grade 5 and is suitable for use in both indoor and outdoor applications

including electrical connections

This screw is 2 1/2 inches long and has a diameter of 3/4-10

6-20 x 1 3/8 Phillips Bugle Head Full Thread Self Drilling Drywall Screw Black Phosphate 1 1/8-7 NE They are made of durableThese 6 20 x 1 3 8 inch Phillips bugle head full thread self drilling drywall screws are made of hardened steel and feature a black phosphate finish for corrosion resistance. They are designed for use in drywall applications and feature a self drilling tip that eliminates the need for pre drilling. The bugle head provides a flush, countersunk finish, and the full thread provides maximum holding power. These screws are sold in packs of 1000 and are