3 16 Inch 24 Thread Zinc Coated Hex Lock Nuts With Nylon Insert 100 Pack Heavy Duty Auto Fasteners Built Tough For Underhood Repairs Smooth Grip Keeps Things Rock Solid Pro Mechanic Favorite Garage Essential

Zinc Coated Hex Lock Nuts 100 Pack Nylon Insert Fix Car
✔️ 100 Pack 3/16 24 TPI Carbon Steel Grade 4.8 Hardware

These zinc plated hex lock nuts feature a built in nylon insert that grips tight against threads to stop vibrations from shaking loose over time. Typical shop crews stock these fasteners for engine bay work, chassis mounts, and underhood bracket fixes where steady clamping pressure matters.

✅ Three sixteenth inch major diameter measures four millimeter across
✅ Five mm overall thickness offers point two inch mounting depth
✅ Grade four eight tensile strength secures zero point eight inch pull load
✅ One hundred piece bundle delivers heavy duty replacement hardware

💡 What makes lock washers superior to flat washers for vibrating engine mounts?

The embedded polymer ring creates radial force that bites the steel threads on contact. - Weekend gearheads rely on the polymer grip to keep engine brackets from dancing around - High vibration environments benefit because the nylon sleeve eats up shock without backing off - Bulk boxes run cheap so you can keep extras on the shelf when drops ruin the coating ✝️