What are ASTM Fasteners?
ASTM Fasteners are bolts, stud bolts, nuts, threaded rods and other fastening products manufactured according to applicable ASTM material and product specifications. They are widely used where defined material properties, dimensional requirements, mechanical performance and quality documentation are essential.
ASTM specifications help establish consistent requirements for fastener materials and manufacturing, making them suitable for demanding applications across oil & gas, petrochemical, refinery, power generation, chemical processing and heavy engineering industries.
Industrial Engineering Works supplies ASTM fasteners in a wide range of carbon steel, alloy steel, stainless steel, duplex, super duplex and nickel alloy materials. Products can be manufactured in standard and custom sizes with applicable testing, inspection and certification documentation.
ASTM Standards We Manufacture
ASTM A193
ASTM A193 fasteners are commonly used for high-temperature and high-pressure applications such as piping, valves, flanges and pressure-containing equipment.
ASTM A320
ASTM A320 fasteners are designed for applications requiring suitable mechanical properties at low or cryogenic temperatures.
ASTM A194
ASTM A194 covers carbon and alloy steel nuts used with high-pressure and high-temperature bolting assemblies.
ASTM A307
ASTM A307 bolts are used for general-purpose industrial and mechanical fastening applications.
ASTM A325 / F3125
ASTM A325 requirements are now covered within ASTM F3125 for high-strength structural bolting applications used in structural steel connections.
ASTM A354
ASTM A354 covers high-strength alloy steel bolts, screws, studs and other externally threaded fasteners for demanding engineering applications.
ASTM A453
ASTM A453 fasteners are designed for elevated-temperature applications where specified strength and material performance are required.
Our ASTM Fasteners Range
ASTM Stud Bolts
Industrial Engineering Works supplies ASTM stud bolts for high-pressure piping, valves, flanges, pressure vessels and other Industrial Engineering Works assemblies. Available grades include ASTM A193 B7, A193 B16, A320 L7, B8 and B8M, depending on application requirements.
ASTM Heavy Hex Nuts
ASTM heavy hex nuts are manufactured for use with compatible stud bolts and high-strength bolting assemblies. Available grades include ASTM A194 Grade 2H, 2HM, 7 and 8.
ASTM Bolts
ASTM bolts are available for industrial, structural, high-strength and high-temperature applications. Common specifications include ASTM A307, A325/F3125, A354, A449 and A453.
ASTM Threaded Rods
ASTM threaded rods can be supplied in carbon steel, alloy steel and stainless steel grades with standard or custom diameters, lengths and thread configurations.
Custom ASTM Fasteners
Custom ASTM fasteners can be manufactured according to customer drawings, required dimensions, material grades, thread configurations, coatings and project specifications.
Industries We Serve
Oil & Gas
ASTM fasteners for pipelines, valves, flanges, pressure equipment and Industrial Engineering Works assemblies used throughout oil & gas facilities.
Petrochemical
Fasteners for process equipment, piping systems, reactors and pressure-containing connections.
Refineries
ASTM-compliant bolting for refinery piping, valves, heat exchangers and process equipment.
Power Generation
High-temperature and high-strength fasteners for power generation equipment, piping and mechanical assemblies.
Offshore Platforms
Corrosion-resistant and high-strength fasteners for offshore structures, equipment and piping systems.
Chemical Processing
ASTM fasteners for chemical processing equipment where material compatibility and reliable mechanical performance are important.
Pipeline Projects
Stud bolts, nuts and bolts for pipeline flanges, valves and associated mechanical connections.
Heavy Engineering
High-strength ASTM fasteners for heavy machinery, industrial equipment and engineered mechanical assemblies.
Available Materials
Available Coatings & Finishes
Black Oxide
Black oxide finishes can provide surface protection and are commonly used for suitable industrial applications.
PTFE Coated
PTFE coatings can be supplied where low friction, chemical resistance and additional corrosion protection are required.
Xylan Coated
Xylan coatings are available for applications requiring enhanced corrosion protection, reduced friction and improved surface performance.
Hot Dip Galvanized
Hot dip galvanized fasteners provide a zinc coating for improved atmospheric corrosion protection.
Zinc Plated
Zinc plating provides a protective surface finish for suitable industrial fastening applications.
Phosphate Coated
Phosphate coatings can provide surface protection and improved coating adhesion for applicable fastener applications.
Why Choose Industrial Engineering Works?
Technical Specifications
| Standard | Products | Typical Applications |
|---|---|---|
| ASTM A193 | Stud Bolts | High-pressure piping, valves, flanges |
| ASTM A320 | Stud Bolts | Low-temperature and cryogenic service |
| ASTM A194 | Heavy Hex Nuts | Pressure-containing joints |
| ASTM A307 | Bolts | General industrial applications |
| ASTM A325 / F3125 | Structural Bolts | Structural steel connections |
| ASTM A354 | High-Strength Bolts | Heavy engineering |
| ASTM A453 | Bolts | High-temperature service |
Quality Assurance & Testing
Industrial Engineering Works applies appropriate inspection and testing procedures according to the applicable ASTM specification, material grade and customer requirements.
Common Questions About IEW
What are ASTM Fasteners?
ASTM fasteners are bolts, studs, nuts and other fastening products manufactured according to applicable ASTM material or product specifications. They are widely used in industrial, structural, oil & gas and engineering applications.
Which ASTM fastener grades do you manufacture?
Common grades include ASTM A193 B7 and B16, ASTM A320 L7, ASTM A194 2H and 7, ASTM A307, ASTM A354, ASTM A453, ASTM B8 and ASTM B8M, along with other grades based on customer requirements.
What is the difference between ASTM A193 and ASTM A320?
ASTM A193 primarily covers alloy and stainless steel bolting for high-temperature or high-pressure applications, while ASTM A320 covers bolting intended for low-temperature service and includes requirements appropriate to such applications.
Which ASTM fasteners are suitable for high-temperature service?
Grades under ASTM A193 and applicable ASTM A453 specifications are commonly selected for elevated-temperature applications, depending on the equipment, temperature and project requirements.
Which ASTM grades are used for cryogenic applications?
ASTM A320 grades are commonly used where fasteners must meet specified low-temperature or cryogenic service requirements. The appropriate grade should be selected based on the application and engineering specification.
Can ASTM fasteners be supplied with PTFE or Xylan coating?
Yes. PTFE and Xylan coatings can be supplied for applicable fastener materials and applications where additional corrosion protection, chemical resistance or reduced friction is required.
Do you provide EN 10204 3.1 or 3.2 certificates?
Yes. EN 10204 3.1 or 3.2 certification can be provided when required by the customer or project specification.
Can custom ASTM fasteners be manufactured?
Yes. Custom ASTM fasteners can be produced according to customer drawings, dimensions, material grades, thread requirements, quantities and applicable specifications.
Do you export ASTM fasteners to the USA?
Yes. Industrial Engineering Works supplies ASTM fasteners for customers and industrial projects in the USA, with worldwide export capabilities.
Which industries use ASTM fasteners?
ASTM fasteners are widely used in oil & gas, petrochemical, refineries, power generation, offshore platforms, chemical processing, pipeline projects and heavy engineering.