145 Piece Set Plastic Screw Cap Covers For Hex Bolts Dome Style Fits M4 To M12 Easy Install Bolt Protection Caps

145-Piece Hex Head Dome Bolt Caps for Protection and Finish
✔️ 145-piece set of hex head dome bolt caps for M4-M12, clear storage box

These premium plastic bolt caps fit hex screws from M4 to M12 and shield fastener threads from moisture, dust, and corrosion. Perfect for machines, furniture, vehicles, and outdoor gear where a neat look plus lasting protection matters.

✅ M4 caps, 50 pieces
✅ M5 caps, 30 pieces
✅ M6 caps, 20 pieces
✅ M8 caps, 10 pieces
✅ M10 caps, 20 pieces
✅ M12 caps, 15 pieces

💡 What is a screw cap cover used for in mechanical assemblies with hex bolts?

These handy caps help protect fasteners and keep projects tidy in real-world use.
- Protect threads from dust and moisture
- Improve appearance on equipment
- Shield bolt heads from impact and wear
- Prevent rust in outdoor or damp environments