China Screw Manufacturers, Suppliers, Factory

Carbon steel coated Dacromet carriage bolt, round head with square neck. When tightening the nut, the square neck fits into the groove, and the bolt does not rotate on its own. It can be locked on one side. Dacromet coating, no red rust after 720 hours of salt spray.

DIN 915 Hexagon Socket Set Screws with Dog Point are made of 45H carbon steel and undergo blackening treatment. The product features high strength, wear resistance and excellent surface anti-rust performance. The design of the internal hexagon and cylindrical end of the product is optimized for axial positioning in narrow spaces, and can reliably fix shaft parts (such as gears, bearings, pulleys, etc.), making it an indispensable fastening component in mechanical manufacturing, automation equipment and precision instruments.

Jinghong Factory specializes in producing Trox Low Cylindrical Head Screws, which are made of high-quality carbon steel and have a short cylindrical head. Trox groove with blue and white zinc treatment on the surface, suitable for assembly occasions with limited headroom. The Trox groove drive is not easy to slip and is suitable for quick locking of pneumatic or electric tools.

Stainless Steel Trox Flat Head Machine Screw, 304 material, countersunk head, hexagonal drive. The head remains flush with the surface after tightening, ensuring no sharp edges. The hexagonal drive offers better torque transmission than a cross-head, reducing the likelihood of slipping and ensuring efficient torque transfer.

Jinghong Factory specializes in producing stainless steel Hexagonal Cylinder Head Shoulder Screw, which is formed by cold heading 304 stainless steel. The head is an inner hexagonal cylindrical head, and the rod has a precision step (smooth rod) with threads located at the end. This type of screw is used on parts that require rotation or positioning. The step part is fitted with a gap between the fitting hole, and after tightening, the screw can rotate and also serve as a positioning tool. The length and diameter of the steps can be customized according to the drawings, and regular sizes are readily available in stock.

The black stainless steel cross-point self-tapping screw is a metal fastener that combines both anti-corrosion properties and aesthetic texture. It is made from 304 or 316 stainless steel as the base material. After surface blackening or oxidation treatment, it presents a matte black color. The head adopts the standard cross-point design, and the thread is a self-tapping type. It can directly drill out the thread on thin metal sheets, plastics, or woods without the need for pre-drilling. This product is suitable for connection scenarios with requirements for both smooth appearance and anti-corrosion performance, such as building decoration, fixing the shells of electronic devices, and outdoor display stands.