Detail & Specs
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Fuji Lock Nut - Stainless Black Oxide
Fuji hex locking nuts can be installed and removed multiple times. The locking mechanism for this nut is a set of two or three retaining teeth made of spring steel. The interference between the locking teeth and the threads of the mating bolt prevents loosening during vibration.
The all metal construction is better for higher temperature installations where a nylon-insert lock nut might fail.
Material
A2 Stainless lock nuts are commonly used in damp environments for corrosion resistance, popular across a wide range of industries: automotive, agriculture, food processing, clean energy, etc
Finish: Black Oxide
- Abrasion resistant, does not peel, chip or rub off
- Reduces friction, prevents galling
- Does not change the strength of the stainless steel
- Practically no dimensional change to base fastener
- The spray applied during the coating process wears off over time, revealing an attractive matte black finish
The black oxide coating per MIL-DTL-13924, Class 4 on 300 series corrosion resistant steel meets 96 hours of resistance in a 5% salt spray (fog) test in accordance with ASTM B117. We recommend using stainless steel installation tools to prevent extraneous rust.
