B1/4-20 x 7/8 MS90728, Alloy Steel B1821 Coarse Cap Screw Per ASTM A354BD Zinc Yellow DFAR KWTF188 Its unthreaded portion is 3/8

Its unthreaded portion is 3/8 inches long

The Type AB designation indicates that the screw is made of steel and has a zinc coating for corrosion resistance

This 1/4-20 x 1 Unslotted Hexwasher Self Drilling Screw is a full thread machine screw with a zinc and bake finish

These heavy hex structural bolts are designed for heavy-duty construction and structural applications

while the Type A flat head sits flush with the surface for a clean

B1/4-20 x 7/8 MS90728, Alloy Steel B1821 Coarse Cap Screw Per ASTM A354BD Zinc Yellow DFAR KWTF188 Its unthreaded portion is 3/8B1 4 20 x 7 8 MS90728 is a Coarse Cap Screw made of Alloy Steel B1821, meeting the specifications of ASTM A354BD. It has a diameter of 1 4 inch, a length of 7 8 inch, and a thread size of 20 threads per inch. The screw is zinc plated in yellow, providing corrosion resistance and a decorative finish. It is DFAR compliant, ensuring compliance with the Defense Federal Acquisition Regulation Supplement.