2-56 x 1 MS51957, NAS-1635 Phil Pan Machine Screw Coarse Full Thread 300 Series S/S DFAR WSB The nibs under the head

The nibs under the head provide additional grip and prevent the screw from turning when welded

The screw is 1/2" long and is made of durable steel

- Point: Cone

B1/2-13 x 1 3/8 MS90728 is an Alloy Steel B1821 Coarse Cap Screw that meets the specifications of ASTM A354BD

fully threaded design

2-56 x 1 MS51957, NAS-1635 Phil Pan Machine Screw Coarse Full Thread 300 Series S/S DFAR WSB The nibs under the headThe 2 56 x 1 MS51957, NAS 1635 Phil Pan Machine Screw Coarse Full Thread 300 Series S S DFAR is a high quality fastener designed for use in demanding applications. It is made from 300 series stainless steel, which provides excellent corrosion resistance and strength. The screw has a coarse thread, which provides a strong hold in a variety of materials. The Phil Pan head provides a wide bearing surface, which helps to distribute the load and prevent