5/16-18 x 1 3/4 Coarse Thread Socket Set Screw Cup Plain FSH which means that it has

which means that it has been treated to prevent corrosion and to improve its performance

They are designed for use in metal

It has a 1/4-inch diameter and a length of 1 inch

The 8-32 x 3/4 Slotted Indented Hex Washer Thread Cutting Screw Type F Fully Thread 18-8 Stainless is a versatile and durable fastener designed for a wide range of applications

5/16-18 x 1 3/4 Coarse Thread Socket Set Screw Cup Plain FSH which means that it hasThis 5 16 18 x 1 3 4 coarse thread socket set screw cup plain is made of steel and has a plain finish. It has a hex socket drive and a cup point. The cup point provides a large bearing surface for distributing the load, and the hex socket drive allows for easy installation and removal. This set screw is typically used in applications where a strong, secure hold is required, such as in machinery, equipment, and furniture.