Bulk 5/16"-18 Phillips Truss-Head Machine Screws – Black Oxide | Fully Threaded Length:1000 Qty - 5/16-18 x 1-1/2" we offer an undercut (UC)

we offer an undercut (UC) option in the shortest length

Thread Size: 1/4"-20 Coarse Thread (UNC)

delivering exceptional torque resistance and vibration resistance in the most demanding applications

Material & Coating: Steel

Finish: Thermal black oxide + oil for sleek appearance and mild corrosion protection

Bulk 5/16"-18 Phillips Truss-Head Machine Screws – Black Oxide | Fully Threaded Length:1000 Qty - 5/16-18 x 1-1/2" we offer an undercut (UC)Monster Overview: Fix your project right the first time with Bulk 5 16" 18 Phillips Truss Head Machine Screws featuring a Black Oxide & Oil finish and a fully threaded design. Manufactured from AISI 1006 1022 or equivalent low carbon steel, these screws provide a minimum tensile strength of 60,000 psi, making them ideal for sheet metal, HVAC, industrial enclosures, and hardware assemblies where wide bearing surface and a low profile head are critical.