5/16-18 x 2 1/4 MS51959, NASM51959 Phil Flat Machine Screw Full Thread 300 Series S/S DFAR ABH The 1/4-20 x 5/8 Weld

The 1/4-20 x 5/8 Weld Screw with Nibs Top Of Head F/T Plain is a versatile and durable fastener designed for welding applications

the screw has undergone a passivation/wax treatment

The 6-lobe pan head provides a secure and flush fit

- Coarse thread for use in softer materials

They are made from high-quality steel and feature a zinc coating for added durability

5/16-18 x 2 1/4 MS51959, NASM51959 Phil Flat Machine Screw Full Thread 300 Series S/S DFAR ABH The 1/4-20 x 5/8 Weld**5 16 18 x 2 1 4 MS51959, NASM51959 Phil Flat Machine Screw Full Thread 300 Series S S DFAR** This screw is a 5 16 18 x 2 1 4 inch full thread machine screw made of 300 series stainless steel. It has a Phillips flat head and meets the specifications of MS51959 and NASM51959. The screw is DFAR compliant, meaning it meets the requirements of the Defense Federal Acquisition Regulation Supplement.