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SAE Prevailing Torque Lock Nut for use with SAE J429 Grade 5 fasteners. Complies with ASTM A563 Grade B; IFI 100/107. All metal, cadmium plated and waxed. Locks in all positions. Zinc yellow.
- Proof Load: 120,000 psi
- One piece all steel. Easy to apply
- Tempering Temperature: 800° F. (minimum)
- Decarburization: SAE J121
- Discontinuities: SAE J122A
- Rockwell Hardness: B69-C32
- Size: 3/4–16"
- Width Across Flats: 1-1/8"