Rock Solid Zinc Flake Coated Wedge Lock Washers 20 Count Preloaded Double Split Locking Washers M8 5/16 Inch Carbon Steel High Tensile Anti Vibration Bolt Fasteners

M8 Anti Vibration Wedge Washers 20 Pack Zinc Steel Hardware
✔️ EN 1.7182 Carbon Steel Min 46 HRC 0.53x0.34x0.10 Inch

You get twenty M8 wedge lock washers in this pack. They grip bolts tight against shaking engines and moving parts. Workers install these on trucks, farm tools, and industrial gear boxes. The zinc flake finish keeps out rust and moisture so your connections stay secure longer.

✅ Fits 5/16 inch and M8 fasteners perfectly
✅ Outer diameter measures 13.5mm (0.530") for solid seating
✅ Inner opening fits 8.6mm (0.340") shafts securely
✅ Plate thickness reaches 2.5mm (0.100") for strong torque hold
✅ Hardness grades at least 46 HRC to resist deforming
✅ Made from EN 1.7182 carbon steel for long service life

💡 Why choose preloaded wedge lock washers for high vibration applications?

These handy anti shake devices stop bolts from backing off when machines run rough. You want steady tension that survives daily road stress and factory noise. Here is how they handle the job:
- Steel split rings create a mechanical wedge under constant load
- Angled faces press directly against nut heads to lock motion
- Zinc coating shields threads from moisture and road salt damage
- Preloaded design removes guesswork during your next maintenance cycle✝️