Heavy Hex Nuts (ASTM A194 2H)
High-Tensile & SS Fasteners

Heavy Hex Nuts (ASTM A194 2H)

Thick, wide nuts for B7 studs on flanges and pressure joints.

Section
HT & SS fasteners
Type
Nuts

Overview

Heavy hex nuts are thicker and wider across flats than standard nuts. ASTM A194 2H nuts are the standard partner for A193 B7 studs on flanges, valves and pressure vessels.

Available plain, black or with zinc and PTFE coatings for corrosive service.

Specifications

StandardsASTM A194, ASME B18.2.2
Sizes1/2" to 4", M12 to M100
Grades2H, 4, 7, 8, 8M
FinishPlain, black, zinc, PTFE coated

Key features

  • High proof load
  • Wider bearing face
  • Mill test certificates available

Applications

Oil & gasPetrochemicalPower plantsPipelines and flanges
Need a size, grade or finish not listed?We also supply special and non-standard parts to drawing.Send enquiry

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