These Socket Head Cap Screws by Prime-Line Products are constructed of steel and come in a black oxide-coated finish. Their protective coating makes them the ideal corrosion-resistant fastener for use on a variety of projects. The head cap screws have cup points that produce a thin edge that digs into hard surfaces for a secure hold. Rounded head has splined outer circumference with internal hex drive. Use an Allen wrench (hex key) to secure with required torque as needed. Length is measured from underneath the head to the base of the cup point.
Fasteners are constructed of steelAll fasteners come in a corrosion resistant, zinc plated finish, allowing them to be used indoors and outDesigned for use with sheet metal, but can also be used to fasten materials to wood based substancesThe heads of these fasteners feature a square head driveEasy to install with only a few simple toolsThread Type: Coarse, Thread Class: UNC-3A, Point Style: BluntSpecification(s) Met: ASME B18.3 & ASTM F835