3-28 x 3/8 Phillips Pan Self Tapping Screw Type B Fully Threaded Zinc and Bake 4-40-2 They are made of durable

They are made of durable zinc-plated steel and feature a slotted indented hex washer head for easy installation

Ideal for use in roofing

With its 1/2-13 thread size and 7-inch length

while the bugle head design countersinks the screw flush with the drywall surface

4-40 x 3/4 Phillips Flat Thread Cutting Screw Type F Fully Threaded Zinc:

3-28 x 3/8 Phillips Pan Self Tapping Screw Type B Fully Threaded Zinc and Bake 4-40-2 They are made of durableThe 3 28 x 3 8 Phillips Pan Self Tapping Screw Type B Fully Threaded Zinc and Bake is a small, versatile screw designed for use in a variety of applications. It is made of steel and has a zinc and baked finish for corrosion resistance. The screw has a Phillips pan head and a self tapping design, which means it can be driven into metal or plastic without the need for a pre drilled hole. The screw is fully threaded, providing maximum holding power. It