Bulk 5/16"-18 Socket Head Cap Screws – Coarse Thread, Alloy Steel, Black Oxide – Monster Bolts Length:300 QTY - 5/16"-18 x 3-1/2" (PT) Standards: Built to DIN 9427

Standards: Built to DIN 9427 / ISO 7380 geometry for universal compatibility

Precision Drive: 2

Expect consistent fit

these screws offer excellent corrosion resistance and a sleek

Bulk 5/16"-18 Socket Head Cap Screws – Coarse Thread, Alloy Steel, Black Oxide – Monster Bolts Length:300 QTY - 5/16"-18 x 3-1/2" (PT) Standards: Built to DIN 9427Monster Overview: Fix your project right the first time with Bulk 5 16 18 Socket Head Cap Screws from Monster Bolts. These heavy duty fasteners are made from premium alloy steel and finished with a thermal black oxide coating for mild corrosion resistance and a sleek, uniform appearance. Ideal for machinery, tooling, robotics, and structural assemblies requiring maximum strength and precision alignment. All Monster Bolts black oxide socket fasteners