Grade 2H hexagon nuts are high-strength carbon steel fasteners primarily specified under ASTM A194.
These nuts undergo a rigorous heat-treatment process of quenching and tempering to achieve the extreme durability required for high-pressure and high-temperature service.
Key Specifications & Performance
Standards: Typically manufactured to ASTM A194/A194M and often follow ASME B18.2.2 dimensional standards for heavy hex nuts.
Common Pairing: They are most frequently paired with ASTM A193 Grade B7 bolts or studs to create secure connections in demanding industrial environments like oil and gas, power plants, and chemical processing.
Temperature & Pressure: These nuts are designed to maintain their integrity at temperatures up to 427 degrees C and handle intense mechanical stress.
Identification: Look for the permanent "2H" stamped on the face of the nut, along with the manufacturer’s unique identification symbol.
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