About the Gunnebo 858 Lifting Super Bow Shackle with Safety Bolt:

  • U.S Fed. Spec. RR-C-271 Type IVA Class 3, Grade B.
  • They are made from high tensile steel, Quenched and tempered, Grade 8.
  • All parts are hot dip galvanized, brown colour marking.
  • Has a safety factor of 5:1.
  • Documentation: Test certificate and traceable 3.1 certificate.