7/8″-9 18-8 Stainless Steel Coarse Thread Nylon Insert Lock Nuts (3 pcs.)
Diameter: 7/8″ Diameter 2: 1-7/16″ Thickness: 1″ Material: Stainless Steel Driver Type: 1-5/16″ Wrench Thread Size: 9 (Coarse) Hardness: 18-8 Style: Waxed Nylon Insert Type: Lock Nut Box of 3. A lock nut is a nut that resists loosening under vibrations and torque.