HEX HEAVY HEAD BOLTS

Our Heavy Hex Bolts are designed for demanding fastening applications where dependable clamping performance, high mechanical strength, and robust bolt construction are essential. Featuring a larger hex head profile than conventional hex head bolts, Heavy Hex Bolts provide a substantial bearing surface and strong wrench engagement, making them well suited for heavy-duty mechanical assemblies, machinery, construction equipment, steel structures, industrial equipment, and other load-bearing applications. For manufacturers, contractors, distributors, and industrial fastener buyers, they provide a practical solution when standard fastening hardware is not sufficient for the requirements of the assembly.

High-Strength Steel Options

Our Heavy Hex Bolts are available in 1035 carbon steel, 1045 carbon steel, and 40Cr alloy steel, providing different material options for applications with varying strength and performance requirements. 1035 and 1045 carbon steels offer practical solutions for general and medium-duty industrial fastening, while 40Cr alloy steel is suitable for applications requiring higher mechanical performance and greater resistance to demanding service conditions.

To accommodate different load requirements, metric grades include 4.8, 6.8, 8.8, and 10.9 according to ISO 898-1, while inch-series products are available in SAE J429 Grade 2, Grade 5, and Grade 8. This range allows buyers to select Heavy Hex Bolts according to the required strength level instead of relying on a single specification for every application. Higher-strength grades such as 8.8, 10.9, Grade 5, and Grade 8 can be considered for more demanding mechanical and heavy-duty fastening applications where appropriate.

Standardized Metric and Inch Specifications

To support international industrial markets, our Heavy Hex Bolts are available in both metric and inch dimensions. Metric products are supplied according to ISO 4014 and ISO 4017 (DIN 931/DIN 933), while inch-series products are available according to ASME B18.2.1. ISO 4014 and ISO 4017 cover partially threaded and fully threaded hexagon head bolt configurations, respectively, giving customers flexibility when selecting the appropriate thread configuration for their assemblies.

With a size range from M4 to M52 and approximately 1/4" to 2" in inch sizes, our product range covers a broad selection of fastening requirements, from standard equipment assembly to larger industrial and structural applications. Standardized dimensions also facilitate compatibility with commonly used nuts, washers, tools, and existing fastening systems.

Black, Zinc-Plated, and Hot-Dip Galvanized Options

Heavy-duty applications can involve very different environmental conditions, which is why we offer multiple surface finishes to match different service requirements.

Built for Heavy-Duty Sourcing Requirements

The value of a Heavy Hex Bolt is not simply its larger head profile. For professional buyers, the right fastener must combine appropriate steel material, mechanical grade, dimensional specification, thread configuration, and surface finish to match the actual requirements of the assembly. Our broad specification range allows OEM manufacturers, machinery companies, construction suppliers, engineering contractors, fastener distributors, and wholesalers to source Heavy Hex Bolts for different applications through one product range.