5/16-18 x 1 1/4 Six Lobe Pan Thread Cutting Screw Type 23 Fully Threaded Zinc 5/16-18-.125 it features a square head

it features a square head for a secure grip and a plain finish for a clean

This 1/4-20 x 1/2 Phillips full contour truss machine screw is fully threaded and made of 18-8 stainless steel with a black oxide finish

These screws are ideal for use in metal

including those where the screw needs to be able to hold a lot of weight

It is designed to be used with 1/4-28 threaded bolts and has a hex shape for easy tightening and loosening with a wrench

5/16-18 x 1 1/4 Six Lobe Pan Thread Cutting Screw Type 23 Fully Threaded Zinc 5/16-18-.125 it features a square head5 16 18 x 1 1 4" Six Lobe Pan Thread Cutting Screw, Type 23, Fully Threaded, Zinc: 5 16" nominal diameter 18 threads per inch 1 1 4" length Six lobe pan head for increased driving torque and reduced cam out Thread cutting design for creating threads in metal or plastic Type 23 point for general purpose applications Fully threaded for maximum holding power Zinc plated for corrosion resistance