【High-quality materials】 All screw sets are made of refined carbon steel, which is corrosion-resistant, rust-resistant, high-strength, hardened, and offers high torque. They are also difficult to deform and break, scratch-resistant, and have a long service life. They offer long-lasting durability and stability and can be used in various environments to maintain good performance.【Hex socket screw】The hexagonal screw has a flat hexagonal design with a large head contact area and more balanced force, which can reduce pressure, prevent loosening, and protect the parts. The thread is clean, the pitch is uniform, precise, smooth, easy to insert, not easy to deform or slip during operation, and fits the nut perfectly.【Practical design】The threads of the socket head cap screws are uniform and smooth, with clear lines, balanced use, and the fixed threads have good grip and tightening performance, making tightening and disassembly easy. Equipped with an assembly wrench. When tightening the screws, the wrench does not slip easily, is easy to install, and the tightening effect is better.【Multi-purpose】Our hex socket screws are widely used in electronics, furniture assembly and repair, household appliances, bicycles, cars, motorcycles and other vehicle repairs, construction machinery, and other fields. Perfect for door handles, lights, locks, and other small repairs in shops, garages, factories, or around the house.