GRADE 2H UNC

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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Code Description Price Quantity
HNNC0502H 1/2 UNC GRD 2H HEX FULL NUT
56 In Stock for despatch
£150.00 (exc VAT) per HUND
£180.00 (inc VAT)
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HNNC0502HP 1/2 UNC GRD 2H HEX FULL NUT ZINC PLATED
Out of Stock
£138.64 (exc VAT) per HUND
£166.37 (inc VAT)
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+
HNNC0622H 5/8 UNC GRD 2H HEX NUT HEAVY
Out of Stock
£220.00 (exc VAT) per HUND
£264.00 (inc VAT)
-
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HNNC0622HP 5/8 UNC GRD 2H HEX NUT HEAVY ZINC PLATED
Out of Stock
£370.00 (exc VAT) per HUND
£444.00 (inc VAT)
-
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HNNC0752H 3/4 UNC GRD 2H HEX FULL NUT
Out of Stock
£260.00 (exc VAT) per HUND
£312.00 (inc VAT)
-
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HNNC0872H 7/8 UNC GRD 2H HEX FULL NUT
14 In Stock for despatch
£300.00 (exc VAT) per HUND
£360.00 (inc VAT)
-
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HNNC1002H 1" UNC GRD 2H HEX FULL NUT
25 In Stock for despatch
£398.79 (exc VAT) per HUND
£478.55 (inc VAT)
-
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HNNC1252H 1.1/4 UN8 GRD 2H HEX FULL NUT
Out of Stock
£1,110.00 (exc VAT) per HUND
£1,332.00 (inc VAT)
-
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HNNC1752H 1.3/4 UN8 GRD 2H HEX FULL NUT
Out of Stock
£2,370.00 (exc VAT) per HUND
£2,844.00 (inc VAT)
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