Sirius 12.9 Grade Socket Head Cap Screws UNC

This variant of the Sirius 12.9 Grade Socket Head Cap Screws is sized at 3/8 UNC diameter x 4" length, supplied in a pack of 50. The longest 3/8 UNC option in the range, ideal for deep-reach fastenings in heavy structural assemblies, jig and fixture construction and industrial engineering. Features and Benefits: • Grade 12.9 high tensile alloy steel construction • UNC thread for secure, compatible fastening • Internal hex socket head for high torque drive • Compact head profile for use in tight spaces • Precision-machined threads for consistent performance Specifications: D