DESCRIPTION

USS Prevailing Torque Lock Nut for use with SAE J429 Grade 5 fasteners. Complies with ASTM A563 Grade B; IFI 100/107. All metal, plated and waxed. Zinc yellow.
Locks in all positions. Proof Load: 120,000 psi. One piece all steel. Easy to apply. 

Highlights:

• Tempering Temperature: 800° F. (minimum)
• Decarburization: SAE J121
• Discontinuities: SAE J122A
• Rockwell Hardness: B69-C32
• Size: 1"–8"
• Width Across Flats: 1-1/2"