Products

Our factory produces inner and outer serrated washers, made of 304 stainless steel and carbon steel galvanized. We offer inner teeth, outer teeth, and both inner and outer teeth. After tightening, the tooth pattern embeds into the surface, providing anti-loosening through friction. It is more effective than ordinary flat washers and spring washers. When used on equipment and machinery, the bolts are less likely to back out.

Our factory produces 304 stainless steel A-type flat keys, with both ends being semi-circular, manufactured according to the national standard GB/T 1096. These items are used to connect parts such as shafts, gears, and pulleys - when the shaft rotates, it drives the wheel to rotate along with it. Stainless steel does not rust, so there is no need to worry about the key rusting in the slot and becoming difficult to remove when used in humid environments.

The stainless steel CM internal hexagonal flat head machine screw is cold-drawn from 304 stainless steel. The large-diameter thin head design ensures that it is flush with the surface of the workpiece after installation. Combined with the internal hexagonal drive, it features high torque transmission and anti-vibration and anti-loosening performance. The stainless steel material naturally resists rust and corrosion, and can adapt to humid and outdoor environments without the need for electroplating. The full-thread machine has stable screw thread accuracy and reliable connection. It is widely used in 3C electronics, precision instruments, mechanical equipment, furniture hardware, and medical devices, etc., in assembly scenarios that require flatness, rust prevention, and strength.

Our factory specializes in producing Brass Hex Standoff Female to Female, made of H59 or H62 brass. Both ends are machined with internal threads, and the overall shape is hexagonal cylindrical. The product is used for layered support and electrical isolation of PCB boards, sheet metal parts, and internal components of chassis.

Zinc-plated rectangular nuts are cold-formed from carbon steel with a rectangular or square body and a precision-tapped metric thread (M3–M10). The enlarged bearing surface prevents sinking into soft or thin materials, while the flat profile suits channel tracks, narrow slots, and furniture connectors. The zinc finish offers basic corrosion resistance for indoor use. Ideal for cabinets, racks, machine frames, aluminum profiles, and appliance housings where a stable, non-rotating threaded point is needed. Custom sizes and finishes available.

JINGHONG factory specializes in producing Hexagon Socket Head Cap Screws with Three Components, made of 304 stainless steel, equipped with flush washers and spring washers. The washers are already fitted onto the screws before shipment, ensuring they won't fall off. Each set consists of three pieces, ready to use upon arrival, eliminating the hassle of separately retrieving washers during assembly. The threads are machine-cut standard coarse threads, compatible with various metal threaded holes or nuts