Hard to Find Flange Lock Nuts Grade Five 3/8-16 Inch Zinc Plated 12 Piece Set Built For Auto, Farm, Garage And Heavy Duty DIY Projects That Hold Up Under Real World Vibration And Torque

Grade Five 3/8-16 Zinc Flange Lock Nuts, 12-Piece Set
✔️ 3/8 in dia, 11/32 in thick, zinc plated steel, 12 pack

These flange lock nuts are Grade Five fasteners built to stay tight when vibration hits. Made from steel with a zinc finish, they resist rust and keep threads clean. Ideal for automotive, farm, garage, and heavy‑duty DIY projects where real‑world torque and movement are common.

✅ Thread size: 3/8-16
✅ Diameter: 3/8 in; Thickness: 11/32 in
✅ Material: Steel; Finish: Zinc
✅ Grade: Five; Type: Flange lock nut
✅ Driver size: 9/16 in wrench; Pack: 12 pcs

💡 What is a flange lock nut used for in automotive and heavy equipment assemblies?

They’re handy for locking fasteners in place where vibration and movement can loosen standard nuts. Here are the essentials:

- Provides load distribution across the mating surface
- Helps resist loosening from vibration and torque
- Compatible with standard 3/8-16 bolts
- Zinc plated steel provides rust resistance for outdoor use
✝️