#342015

Diameter Thread Threads Length Grade Finish Weight
0.25 (1/4) N/A 20 Grade 5 Plain Finish .0085
Diameter 0.25 (1/4)
Thread 20
Length
Grade Grade 5
Finish Plain Finish
Weight .0085

  • Grade 5


Otherwise known as Heavy or Heavy Thin Nuts, Heavy Hex Jam Nuts are half as small as Hex Nuts. They resemble Hex Jam Nuts; however, they’re larger across the flats. These nuts are generally used to bolt light poles and electrical lines. Earnest carries a full line of Heavy Hex Jam Nuts in Grades 2, 5, 8, and A194 2H.

Heavy Hex Jam Nut – Grade 2

  • Larger width across the flats
  • Half the size of the Hex Nut
  • Commonly used in light pole assemblies
  • Sizes range from 1/4” to 3 1/2”
  • Meets ANSI B18.2.2 standards
  • Heavy Hex Jam Nut – Grade 5

  • Larger width across the flats
  • Half the size of the Hex Nut
  • Commonly used in light pole assemblies
  • Improved strength and toughness
  • Sizes range from 1/4” to 3 1/2”
  • Meets ANSI B18.2.2 standards
  • Heavy Hex Jam Nut – Grade 8

  • Larger width across the flats
  • Half the size of the Hex Nut
  • Commonly used in light pole assemblies
  • Highest strength and toughness
  • Proof load strength of 90,000 psi min
  • Rockwell Hardness:
  • 1/4” to 5/8”: Rc 24/32
  • 3/4” to 1”: Rr 26/34
  • 1 1/8” to 1 1/2”: Rc 26/36
  • Sizes range from 1/4” to 3 1/2”
  • Meets ANSI B18.2.2 standards
  • Heavy Hex Jam Nut – Grade A194 2H

  • Larger width across the flats
  • Half the size of the Hex Nut
  • Commonly used in light pole assemblies
  • Proof load strength of 80,500 psi min
  • Rockwell Hardness:
  • 1/4 to 1 1/2: Rc 24/35
  • 1 5/8 to 3”: Rb 95 – RC 35
  • Sizes range from 1/4" to 3 1/2”
  • Meets ANSI B18.2.2 standards
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