All 60 products from Ningbo Zhongli Bolts Manufacturing Co., Ltd..

This heavy hex nut conforms to the DIN 6915 standard, ensuring specific dimensions, material properties, and performance characteristics. It is suitable for structural steel connections, bridges, and other heavy-duty applications where high clamping forces are required.

These hexagonal nuts conform to DIN 934 standards. They are used in mechanical and industrial applications for fastening bolts, screws, and studs.

High-strength stud bolts are manufactured from heat-treated chromium-molybdenum alloy steel. Designed for high-pressure and high-temperature bolting applications, they exhibit excellent tensile strength and are suitable for use in flanges, valves, and pressure vessels.