QUALITY
With high quality products,perfect services, preferential prices
RICH EXPERIENCE
In the past ten years, the company has developed rapidly
BEST SERVICE
Well trained and experienced staff to answer all your inpqiry in 24 hours.
OUR PRODUCTS
Our products consist of heavy hex bolts & heavy hex nuts, threaded rod & studs, washers and screws...
10
Years of ExperienceAbout Us
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.
Company Strength
Our Production Section
The company's monthly production capacity is 2000 tons.
Annual sales
The company's annual sales exceed $15,000,000.
Good Quality
We are a quality conscious company, innovating new production techniques to continuously enhance efficiency to offer quality products.
Team Of Professionals
The company is bestowed by versatile manufacturing unit and team of experts.
7 Days Return
Simply return it within 7 days for an exchange.
100% Payment Secure
We ensure secure payment with PEV.
PRODUCTS WE OFFER
Solar Accessories
Solar Accessories
Solar roof tilting bracket system has great flexibility for the design and planning of commercial or civil roof solar system.
Know MoreBracket
Bolt
Bolt
The bolt is a type of fastener consisting of a head and a screw (cylinder with external thread).
Know MoreNuts
Screw
Screw
The function of the screw is mainly to connect the two workpieces together and play a fastening role.
Know MoreThreaded Rods
Threaded Rods
Threaded Rods are mechanical parts with internal or external threads, which are generally used as fasteners...
Know MoreAnchor
Washers
Washers
Washers are usually metal and plastic and rubber. High-quality bolted joint require hardened steel washers..
Know More-
Q235 Carbon Steel Fasteners | DIN 933 DIN 931 DIN 934 DIN 125 DIN 127 DIN 975 -
Stainless Steel Double Headed Bolt Dowel Bolt Hanger Bolt for Steel -
standard various type SS201/304/316 pressing parts for solar energy system -
SS304 Stainless Steel Solar Roof Hook Fitting for PV System -
Stainless Steel SS201 SS304 Solar Energy System Roof Hook Fastener
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DIN 6914 Large Hex Head Structural Bolt | Grade 8.8 10.9 | HDG / Black / Zinc -
DIN 933 Hex Bolt | Full Thread | 4.8 8.8 10.9 12.9 | Carbon Steel / Stainless Steel -
ASTM A490 Type 1 Heavy Hex Structural Bolt, Carbon Steel, Hot Dip Galvanized -
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
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DIN 934 Hex Nut | Metric Standard Nut | 4/6/8/10/12 Grade | A2 A4 Stainless Steel -
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
Ningbo Gangtong Zheli Fasteners Co.,Ltd.
For inquiries about hex bolt, hex nut, self tapping screw or price list, please leave your email to us and we will be in touch within 24 hours.
News
2026 Fastener Material Focus: Q235 Carbon Steel — The Cornerstone of Cost-Effective Fastening Solutions In the fastener industry, material selection directly determines product performance, service life and application scenarios. Among numerous metal materials, Q235 carbon steel (also known as A3 steel) has become the most widely used material in the field of ordinary fasteners due to its excellent co......
Ningbo Gangtong Zheli Fasteners: Over 20 Years of Professional Manufacturing, Empowering Global Fastener Supply Chain With the global engineering, construction, machinery and new energy industries booming, the demand for standardized, high-strength and stable-quality fasteners continues to rise. As a core link in the global hardware supply chain, professional fastener manufacturers are playing an increasingly impor......
2026 Global Fastener Industry: Digital Manufacturing & Smart Quality Control Lead the New Upgrade In 2026, digitalization, intelligence, and green development have become the three core driving forces of the global fastener industry. Intelligent manufacturing improves product consistency, quality stability, and production efficiency, providing safer and more reliable fastening solutions for engi......
New Products
Q235 Carbon Steel Fasteners | DIN 933 DIN 931 DIN 934 DIN 125 DIN 127 DIN 975 DIN 934 Hex Nut | Metric Standard Nut | 4/6/8/10/12 Grade | A2 A4 Stainless Steel 
DIN 975 Threaded Rod | Full Thread Stud | 4.8 8.8 10.9 | Carbon Steel / Stainless Steel DIN 6914 Large Hex Head Structural Bolt | Grade 8.8 10.9 | HDG / Black / Zinc DIN 933 Hex Bolt | Full Thread | 4.8 8.8 10.9 12.9 | Carbon Steel / Stainless Steel ASTM A490 Type 1 Heavy Hex Structural Bolt, Carbon Steel, Hot Dip Galvanized 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
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