#218874T

Diameter Thread Threads Length Grade Finish Weight
0.25 (1/4) Partial 20 0.75 (3/4) Grade 5 Zinc Clear Trivalent .0157
Diameter 0.25 (1/4)
Thread 20
Length 0.75 (3/4)
Grade Grade 5
Finish Zinc Clear Trivalent
Weight .0157

  • Grade 5


You may be familiar with them being called Serrated Shoulder Bolts or Ribbed Bolts. However you refer to them, they often secure the bed of a truck to its frame. The Ribbed Neck Carriage Bolts are perfect for assembling wood, plastic, or soft metals requiring high wear resistance applications. The low-profile head ensures that there is no interference with objects as they slide over the head. The ribbed neck prevents the bolts from loosening over time. Earnest carries Ribbed Neck Carriage Bolts in Grade 5.

Ribbed Neck Carriage Bolt – Grade 5

  • Rockwell hardness of Rc 25/34
  • Increased hardness provides greater wear resistance to the head, ensuring a long bolt life
  • Better toughness as compared to standard or slick head carriage bolts
  • Popular applications include installing floor boards to the bed of trucks and wear-resistant sheeting to conveyers or chutes
  • Diameter sizes range from 1/4" to 3/8
  • Meets ASME B18.5 standards
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