Bolt
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Bolt

At Topbolt Metalworks, we pride ourselves on delivering high-quality bolts designed to meet the rigorous demands of various industries. Our range of bolts, including the ASTM A325/A490 Type 1 Heavy Hex Bolts, ASTM A325M/A490M Heavy Hex Bolts, and SAE J429 G5 & G8 Hex Head Bolts, exemplifies exceptional strength, durability, and versatility.

High Strength and Durability: Our ASTM A325 and A490 heavy hex bolts are manufactured from premium carbon and alloy steel, ensuring they meet stringent ASTM standards. With tensile strengths designed for heavy-duty applications, these bolts provide the reliability needed in structural steel connections, bridges, and industrial machinery.

Versatile Finishing Options: We offer a variety of finishes, including hot-dipped galvanized (H.D.G.), zinc plating, and black oxide, to enhance corrosion resistance and extend the lifespan of the bolts. This versatility ensures they can withstand harsh environments, making them suitable for construction, oil and gas, and heavy machinery applications.

Customized Solutions: Understanding that every project is unique, we provide customizable options for sizes, thread lengths, and finishes. Whether you require full-threaded or half-threaded bolts, our team can tailor the products to meet your specific needs.

Compliance with International Standards: All our bolts adhere to ISO9001:2015 certification and relevant ASTM standards, ensuring consistent quality and performance across all products. This commitment to quality is reinforced by rigorous testing and quality control procedures throughout the manufacturing process.

Global Reach and Capacity: With a state-of-the-art production facility in Ningbo, China, and a monthly capacity of 2,000 tons, we are equipped to handle orders of any scale. Our products are trusted by clients in North America, Europe, Australia, and beyond, making us a reliable partner for your fastening needs.

Heavy Hex Design for Enhanced Performance: Our heavy hex bolts feature larger and thicker heads than standard hex bolts, providing increased load-bearing capacity and better distribution of stress. This design is particularly beneficial in applications requiring robust fastening solutions, such as steel structures and machinery.

Head shape: Hexagonal head, square head, round head can all be produced.

Size: M4-M100, 3/8 "-4", divided into metric size and inch size

Thread type: full thread or half thread

Material: Carbon steel, alloy steel, stainless steel are all acceptable.

Color expression: plain,black,galvanized,H.D.G,YZP,Dacromet,Xylan

Level: 4.8, 6.8, 8.8, 10.9, 12.9,

Applications: Architecture, bridges, industry, shipbuilding, mechanical equipment, etc

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WhatsApp: +8618069043038
Telephone: +86-574-86595122
Phone: +86-18069043038
Email: sales2@topboltmfg.com
Address: Yuyan, Xiepu Chemical Industrial Zone, Zhenhai District, Ningbo, China

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