Bulk 1-3/8"-6 Socket Head Cap Screws – Coarse Thread, Alloy Steel, Black Oxide – Monster Bolts Flange Button and small-scale metal assembly work

and small-scale metal assembly work

polished look

Tapped 3/8-16 and CNC-cut from corrosion-resistant aluminum

High-Quality Fasteners with Enhanced Clamping Force and Stability

Bulk 1-3/8"-6 Socket Head Cap Screws – Coarse Thread, Alloy Steel, Black Oxide – Monster Bolts Flange Button and small-scale metal assembly workMonster Overview: Fix your project right the first time with Bulk 1 3 8" 6 Socket Head Cap Screws from Monster Bolts. These heavy duty, large diameter fasteners are made from premium alloy steel and finished with a thermal black oxide coating that provides a smooth matte appearance and mild corrosion resistance. Perfect for high load mechanical, structural, and industrial applications that demand maximum clamping strength and durability. All Monster