FEATURES: The Hillman Socket-Head Cap Screws carry a recessed internal socket drive to add strength. This socket head screw is commonly used on machine parts, manufacturing equipment, and other mechanical applications. The socket set screw is part of the Hillman Deep Drawer program. Commonly used on machine parts, manufacturing equipment, and other mechanical applications Features coarse 1/4" -20 size thread and measures 1" in length Socket head screw part of the Hillman Deep Drawer program Socket head cap screw made of stainless-steel Socket set screw carries recessed internal socket drive to add strength