4X9/16 Three Sixteenths Round Spacer Nylon FH They have a black oxide

They have a black oxide finish and are designed for use in metal applications

The six-lobe flat thread design provides a strong grip and prevents the screw from slipping

The serrated threads provide a strong hold in a variety of materials

The 3/4 x 3 1/2 Socket Shoulder Screw Plain is a type of fastener that is used to secure two pieces of material together

The 1/4-20 x 1/2 Six Lobe Flat Floor Board Screw Type F Black Phosphate is a small

4X9/16 Three Sixteenths Round Spacer Nylon FH They have a black oxide4X9 16" Three Sixteenths Round Spacer Nylon is a cylindrical spacer made of durable nylon material. It has a diameter of 9 16 inches and a thickness of 3 16 inches. The spacer is designed to create space or distance between two objects, components, or surfaces. It is commonly used in various applications, such as construction, manufacturing, and electronics, to provide support, alignment, or insulation. The nylon material offers good strength,