Go To M4 Screws Kit With Eight Lengths 6 8 10 12 16 20 25 30mm Hex Socket Head Bolts Nuts And Washers 12.9 Grade Alloy Steel Black Oxide For 3D Printers And DIY Projects

M4 Socket Head Screws Kit: 8 Lengths in 12.9 Steel
✔️ Includes M4 x 6-30mm bolts, nuts, washers in a divided case

This eight-length M4 screw kit includes M4 x 6-30 mm socket head bolts, nuts, and washers finished in black oxide for rust resistance. It's ideal for assembling 3D printers, electronics, RC models, CNC projects, and DIY furniture.

✅ 12.9 grade alloy steel for high strength and wear resistance
✅ M4 x 6-30 mm lengths with burr-free, clean threads
✅ Black oxide finish provides rust resistance and oil-free handling
✅ Includes bolts, nuts, washers in a divided case for quick access
✅ Great for 3D printers, electronics, RC, CNC, and furniture builds

💡 What is the best M4 screw kit for DIY projects with strong 12.9 steel and rust resistance?

This kit is designed for dependable, everyday builds across machines and hobby work.

• 12.9 grade alloy steel for high tensile strength
• M4 x 6-30 mm lengths with burr-free threads
• Black oxide finish for corrosion resistance and oil-free handling
• Includes bolts, nuts, washers in a divided case for fast access

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