Top Lock Hex Nuts - Grade 9 - Coarse Thread - EcoGaurd - Gray / Silver
Prevailing Torque to IFI 100 / 107 Grade-C / DFAR-Compliant
Medium Carbon or Alloy Steel / Proof Load: 180,000 psi
Hardness: HRC 32-38 (1/4 thru 5/8" diam); HRC 35-40 (3/4 - 1.5" diams.)
Coarse Thread / EcoGaurd 1,000 hour Gray / Silver Coating
