Products

The copper flat head self-tapping rivet nut is cold-drawn from H62 brass. The 90° recessed design ensures that the head is flush with the surface of the thin plate after riveting. The specifications range from M3 to M10. The product combines the electrical conductivity, heat conductivity, non-magnetism, corrosion resistance and non-sparking characteristics of copper. A bulge lock can be formed on the backside by single-sided self-tapping riveting, without the need for welding or double-sided operation. The recessed head does not protrude and the appearance is neat. The vertical lines or hexagonal column shape can prevent rotation. It is widely used in scenarios such as distribution cabinet panels, communication cabinets, copper bar connections, explosion-proof electrical appliances, decorative copper art and food and chemical equipment where there are requirements for flatness, material uniformity and corrosion resistance of thin plates with single-sided threaded connections.

GB/T 73 slotted flat-ended locking screws adopt a headless full-thread design. The top one-way slot can be driven by a regular screwdriver. The end is flat. After tightening, only a shallow indentation will be left on the contact surface, and it will not penetrate the workpiece surface. They are suitable for frequent adjustment or scenarios requiring surface integrity. After tightening, the screws fully sink into the screw holes and do not protrude from the workpiece surface, thus not affecting the movement of adjacent components. The carbon steel blackening/galvanizing provides an economical rust prevention solution, while the stainless steel model meets the requirements of humid or food-grade environments. The product is widely applicable to scenarios such as light-load positioning and axial limitation in instruments and meters, small machinery, electronic appliances, and tooling and fixtures.

This factory specializes in the production of Cross Flat Head Timber Screws. Made from high-quality carbon steel through cold heading, the screws undergo surface treatments such as galvanization, blackening, or phosphating. Featuring double-threaded or tapered designs, the sharp pointed tail with self-tapping grooves is specifically designed for fastening connections. With cross recess drive and hardened surface treatment to enhance hardness, these screws ensure smooth insertion without slipping. Widely used across various industries, they are available in standard sizes ranging from 4mm to 5mm in diameter and 12-120mm in length, with ample stock on hand.

GB835 carbon steel hand-tightened screws are manufactured in accordance with the national standard GB/T 835. They are made from high-quality carbon steel, with the surface treated by galvanization, providing both basic rust prevention capabilities and economic practicality. The cylindrical flat head surface is precisely embossed, offering excellent anti-slip friction, allowing for quick tightening or loosening with bare hands, enabling tool-free operation. A one-degree angle slot is reserved at the center of the head, and a screwdriver can be used for assistance in tightening when necessary. The flat head design ensures that the installation is flush with the surface, without interfering with adjacent components. This product is suitable for indoor scenarios where frequent manual adjustment is required and budget is sensitive, such as mechanical equipment protective covers, electronic cabinet panels, workholding fixtures, home appliance shells, and furniture assembly. However, it is not recommended for use in high humidity, strong corrosive environments, or main load-bearing structures.

The stainless steel square wing butterfly nut is manufactured in accordance with the German standard DIN 315. It is made of SUS304 or SUS316 stainless steel and undergoes surface natural passivation treatment. Without electroplating, it can possess excellent corrosion resistance. The square wing design offers a larger grip area and manual torque compared to the round wing, allowing for quick tightening or loosening with bare hands, enabling quick disassembly and reassembly without tools. The thread accuracy is stable, and it can be repeatedly disassembled without slipping, making it suitable for connection scenarios in mechanical equipment covers, electrical cabinets, photovoltaic supports, automotive battery fixation, food and pharmaceutical equipment, and laboratory instruments that require frequent adjustment, maintenance, and rust prevention and cleanliness.

Our factory specializes in producing hot-dip galvanized external hexagonal bolts, hexagonal nuts, spring washers, and flat washers. We use high-quality carbon steel cold forging to form the complete set, which includes one external hexagonal bolt, one hexagonal nut, one spring washer, and one flat washer. The surface is all hot-dip galvanized. The bolt strength grade is 8.8, and the nut strength grade is 8. They are used in conjunction and have reliable locking.