1/4-20 x 1 3/4 Phillips Flat Undercut Thread Cutting Screw Type F Fully Threaded Zinc 3/8-24 NTE This 5/16-18 x 1/2 6-Lobe

This 5/16-18 x 1/2 6-Lobe Pan Machine Screw is made of durable zinc and features a fully threaded design for secure fastening

The external Sems design features a washer that is permanently attached to the screw

making them a good choice for outdoor use

* Thread size: 5/16-18

The hexagonal head offers a secure grip for easy installation and removal

1/4-20 x 1 3/4 Phillips Flat Undercut Thread Cutting Screw Type F Fully Threaded Zinc 3/8-24 NTE This 5/16-18 x 1/2 6-Lobe1 4 20 x 1 3 4 Phillips Flat Undercut Thread Cutting Screw Type F Fully Threaded Zinc: This screw is designed for use in metal or plastic applications where a strong, secure hold is required. It features a 1 4 20 thread size, a length of 1 3 4 inches, and a Phillips flat undercut drive. The thread cutting design allows the screw to create its own threads as it is driven in, providing a secure hold in materials that are not pre tapped. The fully