Kick Ass EPDM Washer Plugs Black M4 Metric Fasteners 3.6mm By 12.0mm Feature A Flange To Shield Your Project While Masking Off Zones Around Holes Super Reliable Performance For Tough Jobs Shipped In An Epic 2500 Piece Bundle For Pros

Heavy Duty EPDM Rubber Plugs For Thread Hole Guarding
✔️ Heavy duty EPDM seals M4 fasteners 3.6mm to 12.0mm

You grab these black EPDM rubber plugs to cover open M4 threads during heavy fabrication work. You slap them onto bolt holes to block paint overspray and welding sparks. You save cleanup time because they keep fastener seats spotless until assembly day.

✅ Flange edge shields surrounding metal from paint and sparks
✅ High grade EPDM material tolerates shop floor conditions
✅ M4 metric threading fits standard coarse pitch bolts
✅ Covers 3.6mm shaft diameter up to 12.0mm overall height
✅ Comes ready to install as individual caps in a 2500 count bundle

💡 What are threaded hole protection plugs used for?
I keep these handy during painting and welding shifts to stop overspray and spatter from ruining your threads.
- Metal flange rings create a tight barrier against wet finish
- Soft rubber cores absorb impact without scratching base steel
- Standard metric sizing lines up perfectly with common frame mounts
- Quick push fit saves hours compared to messy tape masking techniques