PFC 3/8"-16 NC Grade A Nylon Insert Locknuts Zinc Plated - 100 per Box
• Locking Nuts for 3/8" Diameter with 16 NC Thread (National Course) Bolts
• Grade A Low Carbon Steel Nylon Insert Locknut (Meets IFI 100/107) Size NE
• Zinc Plated to meet ASTM F1941 FeZn3A
• 100 per Box
PFC Nylon Locknuts - Locknuts are nuts that resists loosening under vibrations and torque. Fasteners are typically made of low-carbon steel. Coarse threads are better when working with brittle materials; they are sturdier and are easier to thread and unthread compared to fine. Coarse threading also allows for thicker coatings and platings.