Workhorse Grade Carbon Steel Lock Nuts With Zinc Plating And Nylon Insert Give You No Sweat Grip For M4-0.70 Coarse Threads Self Locking Fasteners Bulk Pack Of One Hundred

Heavy Duty M4 Zinc Coated Lock Nuts Bulk Pack 100
✔️ M4 0.70 pitch zinc coated hex lock nut with nylon insert 100 count

M4 self locking nuts are threaded hardware pieces engineered to keep bolts stationary when machines vibrate or frames shake hard. These zinc plated steel fasteners show up in automotive suspensions, engine mounts, and shop rig builds where regular hex nuts keep working themselves loose.

✅ Hex drive head works standard wrenches and sockets for quick tightening
✅ Nylon collar crimped inside grabs mating threads without cross threading
✅ Zinc plating covers bare carbon steel against moisture and road salt damage
✅ Coarse M4 threads bite faster into aluminum plates or brittle plastics
✅ Comes ready to install in a bulk pack of one hundred for big jobs

💡 Why are hex lock nuts considered a handy fix for shaking machinery parts?
This hardware solves the common headache of constant loosening under load.
- Internal ring creates steady friction against bolt shafts to halt backward spinning
- Thick zinc skin shields bare metal from workshop humidity and winter road spray
- Metric thread pitch matches stock replacement holes on modern equipment instantly