Hex Bolt Manufacturer & Supplier
Hex bolts are versatile mechanical fasteners featuring a hexagonal head designed for installation with a wrench or socket. Industrial Engineering Works manufactures and supplies high-strength hex bolts for demanding industrial, structural and pressure-containing applications.
Our hex bolts can be manufactured according to applicable ASTM, ASME, DIN and ISO requirements in carbon steel, alloy steel, stainless steel, duplex and nickel alloys. Standard and custom diameters, lengths, thread configurations and finishes are available for project-specific requirements.
Features & Benefits
High Tensile Strength
High-strength hex bolts are manufactured from suitable grades of carbon steel, alloy steel and stainless steel to provide reliable tensile and clamping performance in demanding applications.
Precision Machined Hex Head
Accurately machined hexagonal heads provide proper wrench and socket engagement, supporting controlled installation and maintenance.
Excellent Load Bearing Capacity
Properly specified hex bolts provide dependable clamping force and load transfer in structural, equipment and industrial assemblies.
Corrosion Resistance
Stainless steel, duplex and nickel alloy options, along with protective surface treatments, help provide resistance against corrosive operating environments.
High Temperature Performance
Selected alloy steel and high-performance materials can be supplied for applications involving elevated temperatures, subject to the applicable material specification.
Custom Manufacturing Options
Custom diameters, lengths, thread configurations, head dimensions, materials and finishes can be manufactured according to drawings and project requirements.
Hex Bolt Specifications
Applications
Oil & Gas Industry
Hex bolts are used in equipment, piping systems, flanges, supports and other critical oil and gas assemblies requiring reliable mechanical fastening.
Petrochemical Plants
Used for equipment connections, piping, process systems and maintenance applications throughout petrochemical facilities.
Power Generation
Suitable for equipment, structural assemblies, piping systems and maintenance requirements in power-generation facilities.
Steel Structures
High-strength structural hex bolts can be used for steel framing, connections and heavy structural assemblies where specified.
Construction & Infrastructure
Hex bolts are used in industrial construction, infrastructure, machinery supports and general structural fastening applications.
Heavy Equipment
Suitable for machinery, industrial equipment, fabricated assemblies and heavy-duty mechanical connections.
Pressure Vessels
Appropriately specified hex bolts can be used for pressure-related equipment and component connections according to applicable engineering requirements.
Industrial Machinery
Used for machine assemblies, equipment mounting, mechanical connections and industrial maintenance applications.
Available Grades
Surface Finishes
Plain Finish
Plain hex bolts are supplied without an additional protective coating and are suitable where the base material and operating environment permit.
Hot Dip Galvanized
Hot dip galvanizing provides a thicker zinc coating for applications requiring enhanced atmospheric corrosion resistance.
Zinc Plated
Zinc-plated hex bolts provide an additional layer of corrosion protection for suitable industrial applications.
PTFE Coating
PTFE coatings can be supplied for applications requiring low-friction characteristics and additional chemical or corrosion resistance.
Black Oxide
Black oxide finishes are available for selected steel fasteners where dimensional stability and a dark protective surface are required.
Xylan Coating
Xylan coatings can be specified for demanding applications requiring corrosion protection, reduced friction and improved surface performance.
Electro Polished (Stainless Steel)
Electropolishing can be supplied for suitable stainless steel hex bolts where improved surface cleanliness and corrosion performance are required.
Dimensions & Technical Specifications
| Specification | Details |
|---|---|
| Diameter | Standard & Custom |
| Length | Standard & Custom |
| Thread Length | Fully / Partially Threaded |
| Across Flats | As per applicable standard |
| Head Height | As per applicable standard |
| Thread Pitch | UNC, UNF & Metric |
| Tensile Strength | According to material grade |
| Yield Strength | According to material grade |
| Weight | Based on size and material |
Quality Assurance & Testing
ISO Certified Manufacturing
Manufacturing and quality processes are controlled according to applicable quality-management requirements.
Material Traceability
Material heat numbers and production records can be maintained throughout the manufacturing process for complete product traceability.
PMI Testing
Positive Material Identification can be performed to verify alloy composition where required by the project specification.
Mechanical Testing
Mechanical testing can include tensile and yield strength verification according to the applicable material standard.
Hardness Testing
Hardness testing is performed where required to verify compliance with specified material requirements.
MTC 3.1 / 3.2
Material Test Certificates can be supplied according to EN 10204 requirements when specified.
Third-Party Inspection
Independent third-party inspection can be arranged according to customer requirements and project inspection plans.
Dimensional Inspection
Critical dimensions, threads, head geometry and overall configuration are inspected against applicable specifications.
Why Choose Industrial Engineering Works?
Frequently Asked Questions
What are Hex Bolts?
Hex bolts are mechanical fasteners with a six-sided head that allows installation using a wrench or socket. They are available in different materials, sizes, thread configurations and strength grades for industrial and structural applications.
What is the difference between Hex Bolts and Heavy Hex Bolts?
Heavy hex bolts generally have a larger and thicker head than standard hex bolts, providing a larger bearing surface and greater wrenching area. The appropriate type depends on the applicable standard and application.
Which ASTM standards apply to Hex Bolts?
Common specifications include ASTM A193, ASTM A307 and ASTM F3125 for applicable applications. The correct standard depends on the required material, strength, dimensions and service conditions.
What materials are available?
Hex bolts can be supplied in carbon steel, alloy steel, stainless steel, duplex, super duplex and selected nickel alloys such as Inconel, Monel and Hastelloy.
What industries use Hex Bolts?
Hex bolts are widely used in oil and gas, petrochemical, power generation, construction, steel structures, pressure equipment, heavy machinery and industrial manufacturing.
Are custom sizes available?
Yes. Custom diameters, lengths, thread configurations, head dimensions and special material requirements can be manufactured according to customer drawings and specifications.
What coatings can be supplied?
Available finishes include plain, zinc plated, hot dip galvanized, PTFE, Xylan, black oxide and electropolished stainless steel, subject to material and application requirements.
Can Hex Bolts be supplied with Heavy Hex Nuts and Washers?
Yes. Compatible nuts and washers can be supplied as complete fastening assemblies according to the required material grade, dimensions and thread configuration.
Do you provide MTC 3.1 / 3.2 certificates?
Yes. EN 10204 3.1 or 3.2 material certification can be provided when specified in the purchase order or inspection requirements.
Which thread types are available?
Hex bolts can be supplied with UNC, UNF and metric threads, including fully threaded or partially threaded configurations as required.