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The VALUE COLLECTION SLFI81500-001BX is a hex lock nut engineered with a distorted-thread locking style that resists loosening under vibration and dynamic loads. Manufactured from Grade C steel with a clear cadmium plating for corrosion resistance, this nut meets UNF fastener standards in a 1-1/2-12 thread size. It measures 1-5/16 inches in height and 2-1/4 inches across the flats, with a right-hand thread direction. Machinists, millwrights, and maintenance mechanics rely on this type of hardware for securing shafts, bearings, and mechanical assemblies where reliable clamping force is critical.
This hex lock nut is suited for industrial, mechanical, and maintenance applications requiring a secure, vibration-resistant fastener in larger diameter thread sizes. The distorted-thread design provides prevailing torque without the need for additional locking inserts or adhesives. Typical installations include rotating equipment, heavy machinery, and structural assemblies where a standard nut would be insufficient to maintain clamp load over time.
Designed as an OEM-style replacement or direct-fit fastener for industrial and mechanical assemblies requiring a 1-1/2-12 UNF right-hand thread hex lock nut in Grade C steel.
Installation is performed by qualified machinists or maintenance mechanics using standard hex tooling sized for 2-1/4 inches across the flats. De-energize and lock out all equipment before servicing any fastened assembly per applicable OSHA and facility safety procedures. Verify thread engagement and seating surface condition before applying final torque. Reuse of distorted-thread lock nuts is generally not recommended, as repeated installation cycles reduce prevailing torque effectiveness.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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