6-18 x 2 1/4 Phillips Bugle Head Fine Thread Drywall Screw Black Phosphate NST They have teeth on the

They have teeth on the inside diameter that bite into the mating surface

The stud is fully threaded and has a plain finish

8 Metric Flange Bolt Screw Non Serrated Zinc RoHS is a high-quality screw that is perfect for a variety of applications

Crafted from durable steel and coated with zinc and bake

These 1/4-20 Serrated Flange Hex Lock Nuts are made from Grade 5 steel and have a zinc coating for corrosion resistance

6-18 x 2 1/4 Phillips Bugle Head Fine Thread Drywall Screw Black Phosphate NST They have teeth on theThese 6 18 x 2 1 4 inch Phillips bugle head fine thread drywall screws are made of steel and have a black phosphate finish. They are designed for use in drywall applications, and their fine thread helps to prevent them from stripping out. The bugle head provides a countersunk finish, and the Phillips drive makes them easy to install. These screws are sold in a box of 100.