1/4-20 x 2 1/2 Phillips Flt Underct Full Thread Self Drill Scr Machine Sc Thread Zinc & Bake MPOBZ it features a coarse thread

it features a coarse thread for a secure hold and a zinc coating for corrosion resistance

The 5/16-18 x 3/4 Slotted Truss Machine Screw Fully Threaded Zinc is a versatile fastener designed for various applications

and the zinc finish protects the screw from corrosion

35 x 3 DIN 7985 A metric Phillips pan machine screw is made of 18-8 stainless steel and has a full thread

1/4-20 x 2 1/2 Phillips Flt Underct Full Thread Self Drill Scr Machine Sc Thread Zinc & Bake MPOBZ it features a coarse threadThese 1 4 20 x 2 1 2 Phillips Flat Undercut Full Thread Self Drilling Screw Machine Screws are made of steel and have a zinc and baked on finish. They are designed for use in metal and have a self drilling tip that eliminates the need for a pilot hole. The flat undercut head provides a flush finish when countersunk. These screws are commonly used in a variety of applications, including construction, manufacturing, and automotive.