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  Bolts & Studs

  Steel structure bolts High-strength bolts B7 studs

Ningbo Taidahezhong Fastener Manufacture Co., Ltd. is located at No. 286 Galaxy Road, Chengdong Industrial Park, Economic Development Zone, Xiangshan, Ningbo, China. The company was founded in 2003 and covers an area of 13,999 square meters, including a building area of 11,899 square meters. The company has developed to a high professional level in the industry, specializing in the production of high-strength bolts, nuts, bolts, and non-standard special fasteners that are resistant to high pressure, high and low temperatures, and corrosion, as well as high-strength bolts, nuts, bolts, and non-standard fasteners with independent research and development patents that never loosen. In recent years, the company has been committed to developing coating technology for various harsh environments and media, producing coating products to meet the anti-corrosion and acid-base requirements of bolt fasteners, making them widely used in petroleum drilling and production equipment, petrochemical equipment, pumps, valves, and seals, petrochemical pipeline containers, and marine engineering. Fasteners for equipment in highly corrosive and harsh environments, such as platforms, oil well production, seawater/water injection and sewage pipelines, hydrogen energy electrolyte tanks, offshore wind power, land-based steel tower wind power, and mixed tower wind power

Production levels include: 6.8, 8.8, 10.9, 12.9, 10.9 HV, 10.9 HR, 8.8 HR, B7, B7M, B16, L7, L7M, L4, 3, B8, B8M, 660AIBICID, N4400, 410, 420, 600, 625, 655, 665, 718, 2205, 2507, F51, F53, C276, 17-4, 825, 925, N08020.

Production range: Diameter M12-M100 (1/2" ~ 4"); Bolt length 25-200mm; The length of the tooth strip is 55-8800mm.

The company has advanced production and testing equipment, has participated in the formulation of multiple international standards, and has strong technical strength. It has won 5 national invention patents and 15 national utility model patents. The company has its own R&D team and several senior technical and quality management personnel. The products have been exported to multiple countries, including the United States, the United Kingdom, Germany, Italy, France, Croatia, Iran, Russia, Singapore, Malaysia, South Korea, Oman, Kuwait, the United Arab Emirates, Qatar, Brazil, and Ecuador.

The company has certificates such as API 20E, Classification Society (Lloyd's Register), PED, CPR, AD2000, ISO 45001, ISO 14001, ISO 9001, and Safety Production Standardization.

The company has the most advanced intelligent three-dimensional storage system in the fastener industry in Ningbo and a 20-ton AGV intelligent handling robot.

The main equipment includes: an 80-meter long multi-roll furnace, No. 6 mesh belt furnace, induction furnace, and other heat treatment equipment; a robot automatic red bolt production line; 21 fully automatic wire rolling machines; 3 multi-station cold heading machines; 9 chamfering stamping machines; 1 wind power anchor production line; 3 car milling composite machines; 1 100-type peeling machine; 1 40-type peeling machine; and 1 100-straightening and calendaring machine.

The testing equipment includes advanced laboratory equipment such as 200-ton and 100-ton tensile testing machines, fully automatic impact testing machines, ultrasonic flaw detectors, magnetic particle flaw detectors, eddy current flaw detectors, 3 hardness machines, torque testing machines, transverse vibration testing machines, Spike desktop spectrometers from Germany, Niton handheld spectrometers from the United States, projectors, metallographic analysis microscopes, and more.

Design and production scale: The annual output of bolts and nuts is 12,000 tons, and the annual output of threaded bolts and columns is 18,000 tons.