1/4-28 x 5/16 Fine Thread Socket Set Screw Cup Plain 3PU188 The 3/8-16 size indicates that

The 3/8-16 size indicates that the nut has a thread diameter of 3/8 inches and a thread pitch of 16 threads per inch

Its slotted indented hex head provides a secure grip for easy driving and prevents slippage

5-20 x 5/16 Phillips Pan Self Tapping Screw Type B Fully Threaded Zinc and Bake

This 1/4-20 x 5 1/2 Phillips round machine screw is fully threaded and made of zinc

1/4-28 x 5/16 Fine Thread Socket Set Screw Cup Plain 3PU188 The 3/8-16 size indicates thatThis 1 4 28 x 5 16 Fine Thread Socket Set Screw Cup Plain is a high quality fastener designed for secure and reliable connections in various applications. Made of durable steel, it features a plain finish for a clean and professional appearance. The 1 4 28 thread size and 5 16 inch cup diameter provide a precise and snug fit. The socket head design allows for easy tightening and removal using a hex key or Allen wrench. This set screw is ideal for use