3/8″-24 18-8 Stainless Steel Fine Thread Type C Lock Nuts (8 pcs.)
Diameter: 3/8″ Diameter 2: 5/8″ Thickness: 11/32″ Material: Stainless Steel Driver Type: 9/16″ Wrench Thread Size: 24 (Fine) Hardness: 18-8 Style: Type C Type: Lock Nut Box of 8. A lock nut is a nut that resists loosening under vibrations and torque.