Low Head Socket Cap Screw is a type of socket screw that has a flat head with a raised, textured surface called knurling. The knurling provides additional grip, making it easier to tighten or loosen the screw by hand. This type of screw is often used in applications where frequent adjustments or manual tightening are required, such as in machinery, equipment, and automotive components. The low head provides a lower profile on the head of the screw where their is limited clearance in its application.