Sirius 12.9 Grade Socket Head Cap Screws UNC

This variant of the Sirius 12.9 Grade Socket Head Cap Screws is sized at 1/2 UNC diameter x 5" length, supplied in a pack of 50. The longest 1/2 UNC option available, offering exceptional shank depth for heavy industrial through-bolt fixings, deep structural assemblies and specialist engineering applications. 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 performan