5/16-18 x 2 1/2 Slotted Pan Machine Screw Fully Threaded Zinc 5/16-18-1 and the black oxide finish

and the black oxide finish offers corrosion resistance and durability

The zinc coating provides corrosion resistance and ensures a long-lasting performance

The hexagonal head provides ample grip for easy installation and removal with a wrench or socket

They have a 3/4" diameter

5/16-18 x 2 1/2 Slotted Pan Machine Screw Fully Threaded Zinc 5/16-18-1 and the black oxide finishThis 5 16 18 x 2 1 2 Slotted Pan Machine Screw is a fully threaded screw made of zinc plated steel. It has a slotted drive and a pan head. The screw is 2 1 2 inches long and has a diameter of 5 16 inches. It is commonly used in a variety of applications, including metalworking, woodworking, and construction.