Heavy Hex Bolts
Larger head size bolts ideal for structural joints requiring high torque and tensile strength.
Minimum order : 400 items
Customization as per requiments
Size | M3 to M100 |
Type | Bolt |
Standard | Din, Iso, Jis, Gb, Is, Bs, Astm |
Length | 3 mm to 200 mm |
Material | Stainless Steel, Monel, Inconel, Incoloy, Hastelloy, Nickel, Silicon Bronze, Phosphor Bronze |
Caliber Enterprise is a trusted high quality hex bolt manufacturer. Our hex bolts, made from premium grade stainless steel, carbon steel, alloy steel and duplex steel, are built to withstand high levels of stress and corrosion in industries including construction, heavy equipment manufacturing, oil and gas, infrastructure and maritime. Thread types (UNC, UNF and metric), surface treatments (PTFE, hot dip galvanized and zinc plated), bolt lengths and head diameters are all customizable based on project specifications.
We offer hex bolts in both fully threaded and partially threaded configurations, and we offer a large selection of sizes that meet both metric and imperial standards. International standards including BS 1083, DIN 931/933, ISO 4014/4017, and ASTM A325/A490 are all met by each bolt. To guarantee superior performance, our quality control procedures include dimensions verification, tensile strength testing, thread accuracy inspection, and corrosion resistance evaluation.Ideal for B2B applications in manufacturing, construction and heavy industrial sectors.
Larger head size bolts ideal for structural joints requiring high torque and tensile strength.
Hex bolts with built in washer flanges, offering better load distribution and vibration resistance.
What are Hex Bolts and where are they commonly used?
Hex Bolts are six sided head fasteners used to securely join two or more components in structural, mechanical and industrial applications. Their design allows for easy installation with standard tools, even in restricted spaces. These bolts are widely used in steel fabrication, heavy equipment assembly, infrastructure development, automotive assemblies, marine structures and oil & gas facilities due to their high strength and durability.
What is the difference between fully threaded and partially threaded Hex Bolts?
Fully threaded Hex Bolts have threads running along the entire shank length, providing a greater grip in applications requiring maximum thread engagement—like fastening two threaded components or using a nut over the full length. Partially threaded Hex Bolts have an unthreaded portion near the head (known as the grip length), which offers shear strength and is ideal for structural connections where alignment and clamping force are critical. Choosing between the two depends on the mechanical design and load distribution of your assembly.
Can Hex Bolts be used in high temperature or cryogenic environments?
Yes, but the material selection is critical. For high temperature applications, Alloy Steel or Stainless Steel 316/310 are preferred for their heat resistance. In cryogenic conditions, Duplex Steel and certain stainless grades retain toughness and prevent embrittlement. It’s essential to match the bolt material to the temperature range and application to avoid failure due to thermal expansion or material degradation.
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