China Screw Manufacturers, Suppliers, Factory

Our factory specializes in producing carbon steel galvanized Torx Countersunk MDF screws, using high-quality carbon steel with countersunk heads and Torx grooves. The surface is treated with blue white zinc or color zinc plating. After installation, the countersunk head is flush with the surface of the workpiece, and the plum blossom groove drive does not slip. It is suitable for connecting wooden boards such as fiberboard, density board, and particleboard. Widely used in various construction industries.

This Countersunk Head Torx Drive Six Lobe is made by cold-drawing high-quality carbon steel. The head is designed as a 90°sink head, and the tail features cutting threads and saw-toothed threads. The internal rose groove on the top can provide strong torque transmission, effectively preventing the drill bit from slipping and damaging the slot during installation. The sink head structure ensures that the screw is flush with the surface of the workpiece after being tightened, maintaining a neat and beautiful appearance. The product surface treatment offers two options: colored zinc (yellow zinc) and blue-white zinc (silver-white zinc). The colored zinc has a thicker protective film and stronger corrosion resistance, suitable for humid or outdoor environments; the blue-white zinc has a clean and refreshing appearance, excellent environmental friendliness and a more favorable cost, suitable for dry indoor or exposed visible assembly scenarios.

Our factory specializes in producing 304 stainless steel Hexagon Socket Set Screw with Through Hole. It is made of 304 stainless steel, with a hexagonal head and a through hole machined along the screw axis. The through-hole design is used for threading steel wire to prevent loosening, exhaust or threading, and is suitable for positioning occasions that require anti loosening locking or gas exhaust. Regular sizes are available in stock, and non-standard through-hole diameter customization is supported.

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.