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Hillman 1/2 in.-13 TPI Steel Grade 5 Serrated Whiz Lock Nuts
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Grade 5 Whiz Lock Nuts, also known as serrated flange lock nuts, are ideal for applications in which a vibration or torque-resistant fastener is desired.
- VIBRATION-RESISTANT: Offers better resistance to loosening by vibration compared to hex nuts
- SERRATED FLANGE: Unique design grips material for additional security
- 1/2"-13 USS COARSE THREAD: Matches bolts or rods of a 1/2"-13 coarse thread size
- STRONG, STURDY, RELIABLE: Made of high-quality steel