Ningbo Gangtong Zheli Fasteners Co.,Ltd. is a manufacturer in China which mainly produces high strength standard fasteners. Our products consist of heavy hex bolts &heavy hex nuts, threaded rod & studs, washers and screws, which are made from both carbon steel, alloy steel and stainless steel. We were established in 2001 and have developed rapidly in the past ten years. The factory is located in Ningbo Zhenhai Chemical industrial area and its headquarter/foreign sales department in Ningbo Jiangdong Eastern Business Centre. The factory now covers an area of approximately 15,000 square meters, with monthly production capacity of 2000 tons. The company has its all-around research system, supply management, large-scale warehouse, metal fastener system, and advanced supply chain management technology with metal fasteners MRO-based integrated procurement distribution business, with annual sales over $15,000,000.
The company's monthly production capacity is 2000 tons.
The company's annual sales exceed $15,000,000.
We are a quality conscious company, innovating new production techniques to continuously enhance efficiency to offer quality products.
The company is bestowed by versatile manufacturing unit and team of experts.
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Know MoreThe bolt is a type of fastener consisting of a head and a screw (cylinder with external thread).
Know MoreThe function of the screw is mainly to connect the two workpieces together and play a fastening role.
Know MoreThreaded Rods are mechanical parts with internal or external threads, which are generally used as fasteners...
Know MoreWashers are usually metal and plastic and rubber. High-quality bolted joint require hardened steel washers..
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Black Hex Structural Bolts
DIN 603 Carriage Bolt
DIN 6914 Large Hex Head Structural Bolt
DIN 933 Hex Bolt
ASTM A490 Type 1 Heavy Hex Structural Bolt
DIN603 Stainless Steel A2-70 SS304 SS316 Carriage Bolt Mushroom Round Head With Square Neck Bolts
8.8 Grade Carbon Steel Hot Dip Galvanized Guardrail Bolts
DIN603 Hot DIP Galvanized Gr8.8 Carriage Bolt
High Strength 4.8/8.8/10.9/12.9 grade Carbon Steel Hot Dipped Galvanized HDG Carriage Bolt Use for electric tower
Hot Dip Galvanized Heavy Duty Thick Hex Lock Nut
DIN6923 Hexagon Flange Nuts
DIN985 Nylon Lock Nut
DIN6923 Hex Flange Nuts
DIN 985 Nylon Lock Nuts Full Series New Arrival
DIN 934 Hex Nut
Gr 8 Carbon steel High Tensile Black DIN6915 Hex Heavy Nuts
M6 M8 M10 Stock Carbon Steel White Blue Zinc Plated Long Nut Coupling Nut
ASTM 1/2" 3/8" 9/16" Gr2 Plain Lock Nut Hexagon Prevailing Torque Nuts
Galvanized Steel Zinc Plated Press Self Clinching Nut

All finished Hot Dip Galvanized Heavy Duty Thick Hex Lock Nut receives random salt spray aging inspection before factory delivery to confirm the integrity of anti-corrosion zinc coating.

Most field verifications confirm that Hot Dip Galvanized Threaded Rod With Matching Nuts delivers stable anti-corrosion performance exceeding 500 hours neutral salt spray test according to ISO 9227 standards,

City, Country – Date – Gangtong Zheli Fasteners, a professional manufacturer and global exporter of industrial fasteners, announces the full upgrade of its surface treatment technology and production lines. This technical iteration focuses on enhancing anti-corrosion performance, surface uniformity ......