B1/2-13 x 2 1/4 MS90728, Alloy Steel B1821 Coarse Cap Screw Per ASTM A354BD Zinc Yellow DFAR WB * 20 threads per inch

* 20 threads per inch (TPI)

which helps to protect it from rust and corrosion

These 8-18 x 3/4 Phillips flat self-tapping screws are made of 18-8 stainless steel and are fully threaded

These screws are designed for use in applications where a low profile is required and are commonly used in electronics

The 1/4-28-

B1/2-13 x 2 1/4 MS90728, Alloy Steel B1821 Coarse Cap Screw Per ASTM A354BD Zinc Yellow DFAR WB * 20 threads per inch**B1 2 13 x 2 1 4 MS90728** * Alloy Steel B1821 Coarse Cap Screw * Conforms to ASTM A354BD standards * Zinc Yellow DFAR coating for corrosion resistance * Measures 1 2" 13 thread diameter by 2 1 4" length * Hexagonal head for easy installation and removal * Coarse threads provide secure hold in soft materials * Suitable for industrial, automotive, and construction applications