Bulk 1/2"-20 Button Head Socket Cap Screws – Alloy Steel, Black Oxide MB1386 Heat-treated carbon-steel blanks receive a

Heat-treated carbon-steel blanks receive a high-luster bright-zinc electro-plate

0990″) Thread Size #3-48 UNC (Coarse Thread) Drive Size 1/16″ Hex (Allen) Head Type 82° Flat Head Socket Cap Screw (FHCS) Material Alloy Steel Finish Thermal Black Oxide (mild protective layer) Standards ASME B18

Premium Tapking® SD design delivers stronger holding power than standard screws

Designed for high-pressure and high-temperature applications

Type 23 Cutting Point: Triangular chip pocket ejects shavings for smoother cutting and lower drive torque

Bulk 1/2"-20 Button Head Socket Cap Screws – Alloy Steel, Black Oxide MB1386 Heat-treated carbon-steel blanks receive aMonster Overview: Fix your project right the first time with Bulk 1 2 20 Button Head Socket Cap Screws from Monster Bolts. These high strength fasteners are precision made from ASTM A574 Alloy Steel and finished with a thermal black oxide + oil coating for a professional black appearance and mild corrosion protection. The fine thread (UNF) design allows for greater tensile strength and better resistance to vibration loosening, making these screws