Premium Grade Built Tough 100 Pack 4mm 304 Stainless Steel Split Lock Washers With Elastic Grip Seals For Bolts And Screws Keep Things Locked Down Against Vibration Loosening

Heavy Duty 4mm Stainless Steel Split Lock Washer Bulk Pack
✔️ Inner 4mm ID 6.3mm OD thickness 1.1mm includes 100

You get a reliable fastening system built to keep bolts and screws firmly seated during active use. These split lock washers apply steady tension to stop hardware from working loose under vibration. Mechanics and home builders place them under nuts across automotive panels, furniture frames, and appliance repair jobs to hold tight connections intact.

✅ Inner hole measures 4mm plus 0.16 inch while outer edge hits 6.3mm and 0.25 inch
✅ Flat profile records 1.1mm plus 0.04 inch for steady screw head support
✅ Grade 304 material fights corrosion and keeps shine intact through tough jobs
✅ Spring gap applies continuous downward pull to stop nuts from walking loose

💡 Why do heavy duty fasteners require split ring washers for long term stability?

Using proper locking hardware saves you from costly equipment downtime. - The split arch acts like a tiny spring to keep steady pressure when vibrations hit the assembly - It provides a handy locking layer that stops nuts from backing off while your equipment runs hot - The flexible design takes up manufacturing gaps so bolts stay centered without wobbling over time ✝️