- VIBRATION-RESISTANT: Offers better resistance to loosening by vibration compared to hex nuts
- SERRATED FLANGE: Unique design grips material for additional security
- 1/4 in.-20 USS COARSE THREAD: Matches bolts or rods of a 1/4 in.-20 coarse thread size
- CORROSION-RESISTANT FINISH: Yellow dichromate combines lasting durability with strong rust protection
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