3/8-24 x 1 1/2 Fine Thread Flat Socket Cap Screw Plain NHHJ5 They have a serrated flange

They have a serrated flange that digs into the mating surface to prevent loosening due to vibration

These 10-16 x 3/4 6 Lobe Pan Self Drilling Screws are fully threaded and made of zinc-plated steel

The 10-16 x 1 Phil Full Contour Truss Self Tapping Screw Type AB Full Thread 18-8 Stainless is a high-quality screw designed for use in a variety of applications

The hex shape provides a secure grip

this thumb screw offers excellent corrosion resistance and durability in demanding environments

3/8-24 x 1 1/2 Fine Thread Flat Socket Cap Screw Plain NHHJ5 They have a serrated flangeThe 3 8 24 x 1 1 2 Fine Thread Flat Socket Cap Screw Plain is a type of screw that is used to fasten two pieces of material together. It has a 3 8 inch diameter and a 24 threads per inch fine thread pitch. The screw is 1 1 2 inches long and has a flat socket head. The screw is made of plain steel and has a black oxide finish. This screw is commonly used in automotive and industrial applications.