8X1/8 Five Sixteenths Round Spacer Nylon FWS and an unthreaded portion below

and an unthreaded portion below the head that acts as a washer to prevent the screw from pulling through thin materials

It is compatible with a wide range of blind rivet sizes and materials

which means that it can create its own threads in soft materials such as wood or plastic

The 6-32 x 1/4 Slotted Binding Undercut Machine Screw Fully Threaded Black Oxide is a small

8X1/8 Five Sixteenths Round Spacer Nylon FWS and an unthreaded portion belowThe 8X1 8 Five Sixteenths Round Spacer Nylon is a small, cylindrical spacer made of durable nylon material. It has a diameter of 5 16 inches (8 millimeters) and a thickness of 1 8 inches (3 millimeters). The spacer is designed to be used as a spacer or shim between two objects, such as a circuit board and a mounting surface. It is commonly used in electronic and mechanical applications to provide insulation, vibration damping, and space management.