510 Piece Metric M3 M4 M5 Alloy Steel Socket Cap Screws And Nuts Kit With Hex Head Flat Head Bolts Black Oxide Finish In Transparent Box For Mech Auto DIY Projects And Maintenance

510-Piece Metric Socket Cap Screw Kit, M3-M5, 10.9 Alloy
✔️ 510 pcs: M3-M4-M5 bolts and nuts in a transparent box

This 510-piece kit provides high-quality Allen hex drive flat head socket cap screws and nuts in M3, M4, and M5 sizes. Made from 10.9 grade alloy steel with a black oxide finish, it’s built for strength and durability in mechanical installations, equipment maintenance, and DIY auto projects. The transparent storage box keeps everything organized for quick access during repairs or builds.

✅ M3 x 8mm bolts - 30 pcs
✅ M3 x 12mm bolts - 30 pcs
✅ M3 x 16mm bolts - 30 pcs
✅ M3 x 20mm bolts - 30 pcs
✅ M3 Nuts - 100 pcs
✅ M4 x 8mm bolts - 25 pcs
✅ M4 x 12mm bolts - 25 pcs
✅ M4 x 16mm bolts - 20 pcs
✅ M4 x 20mm bolts - 20 pcs
✅ M4 Nuts - 80 pcs
✅ M5 x 8mm bolts - 15 pcs
✅ M5 x 12mm bolts - 15 pcs
✅ M5 x 16mm bolts - 15 pcs
✅ M5 x 20mm bolts - 15 pcs
✅ M5 Nuts - 60 pcs
✅ Total quantity: 510 pcs

💡 What is a typical use case for metric socket cap screw and nut kits in DIY mechanical builds?

This handy set keeps fasteners organized and ready for quick repairs and ongoing maintenance. - Durable, black oxide finish resists corrosion in workshop use
- Includes M3, M4, M5 sizes with nuts for quick assembly
- Transparent box keeps parts organized and easy to locate
- 510-piece set covers fastener needs for common projects