Socket head cap screws meet the most stringent industry standards for durability and strength. It is made of corrosion-resistant stainless steel, carbon steel, or alloy steel. For surface installation, an internal hex drive is typically used. The clamped parts are supported by stretching the screws to deal with external forces. It enables these screws to handle the pre-load placed on them effectively and without strain. When tightened to their respective torque figures, they provide the best fatigue resistance.