Fractional Size ASTM A194/SA194 2H Heavy Hex Nut with Plain Finish
Fractional Size ASTM A194 / SA194 2H Heavy Hex Nut with Plain Finish
Fractional Size ASTM A194 / SA194 Grade 2H Heavy Hex Nuts with a Plain Finish are engineered for high-strength fastening in demanding industrial, structural, and pressure system applications. These nuts are manufactured to meet ASTM A194 / SA194 Grade 2H specifications, ensuring superior mechanical strength, precise thread engagement, and dependable clamping force when used with high-strength bolts and threaded studs.
The heavy hex design features a thicker body and wider bearing surface compared to standard hex nuts. This design improves load distribution and provides deeper thread engagement, which enhances joint integrity in assemblies exposed to high pressure, heavy loads, and vibration. Because of their durability and strength, ASTM A194 Grade 2H heavy hex nuts are commonly used in power generation, petrochemical facilities, oil and gas operations, and heavy industrial equipment.
Plain finish heavy hex nuts are manufactured from high-quality carbon steel without additional plating or coatings. This finish is often preferred for applications where corrosion protection is handled through coatings applied to the assembly or where the fastener operates in controlled indoor environments.
Key Features of ASTM A194 / SA194 2H Heavy Hex Nuts
ASTM A194 / SA194 Grade 2H heavy hex nuts are built to provide reliable fastening performance in high-stress industrial environments.
Heat-Treated Grade 2H Strength
Grade 2H nuts are heat treated to achieve higher hardness and tensile strength compared to standard nuts. This process allows them to withstand extreme mechanical loads and maintain clamping force in critical bolted joints.
Heavy Hex Profile for Superior Load Distribution
The larger hex shape and thicker nut body provide a broader bearing surface and deeper thread engagement. This design helps maintain secure bolt tension while reducing the risk of loosening under vibration or stress.
Plain Finish for Industrial Versatility
The plain steel finish offers flexibility for applications where fasteners may be coated, painted, or treated after installation. It also provides excellent compatibility with high-temperature or pressure system environments.
Common Applications for Grade 2H Heavy Hex Nuts
Industrial Piping and Pressure Systems
ASTM A194 Grade 2H heavy hex nuts are widely used with stud bolts in flanges, valves, and pressure vessels that operate under high pressure and temperature conditions.
Structural Steel and Heavy Equipment
Steel fabrication, structural assemblies, and heavy machinery rely on Grade 2H heavy hex nuts to maintain strong, reliable bolt connections.
Power Generation and Energy Infrastructure
Power plants, refineries, and energy facilities frequently use Grade 2H heavy hex nuts for critical bolting applications where strength and reliability are essential.