All Metal Tri-Loc TOP Hex Lock Nuts 304 / 18-8 Stainless Steel.

• This All Metal Tri-Loc Locknut Features THREE Locking Elements Deflecting the Threads in the Top of the Nut.
• All Metal Lock Nuts are for use in Hi Heat Enviroments Where Nylon Insert Lock Nuts Could be Damaged.
• Excellent Alternative to a Standard Nylon Insert Lock Nut.
• 3 Prevailing Torque (PT) Fastener Lock Nuts Continue to Resist Loosening, Even While Sustaining Substantial Friction During Assembly.
• These Lock Nut Fasteners are the Optimal Choice for Applications That Routinely Sustain Heavy Vibration and Shock, Extreme Temperatures, and Numerous Loading Cycles
• Right Hand Thread, UNC