1/4-20 x 1 MS51957-B Phil Pan M/S Coarse Full Thread 300 Series S/S DFAR Black Ox NS5 The 6-lobe flat head design

The 6-lobe flat head design provides a secure hold and prevents the screw from slipping

- 18 Threads per Inch

These washers are typically made of steel or stainless steel and are zinc-plated for corrosion resistance

Manufactured from low carbon steel and zinc-plated for corrosion resistance

With a tensile strength of 78

1/4-20 x 1 MS51957-B Phil Pan M/S Coarse Full Thread 300 Series S/S DFAR Black Ox NS5 The 6-lobe flat head designThe 1 4 20 x 1 MS51957 B Phil Pan M S Coarse Full Thread 300 Series S S DFAR Black Ox is a high quality screw that meets the demanding requirements of military and aerospace applications. It is made from 300 series stainless steel, which provides excellent corrosion resistance and strength. The black oxide finish provides additional corrosion protection and a non reflective surface. The screw has a coarse thread that provides a strong hold in a