M3 Hex Socket Head Cap Screws Kit With Nuts And Wrench Key Allen Drive Heavy Duty Carbon Steel 12 9 Grade Black Zinc Finish Includes M3 X 4mm 5mm 6mm 8mm 10mm 12mm 16mm 18mm 20mm

Heavy-Duty M3 Hex Socket Screws Kit with Nuts and Wrench
✔️ 282-piece kit: 140 bolts, 140 nuts, 2 hex keys; sizes 4-20 mm

This M3 hex socket screw kit is built from 12.9-grade carbon steel and finished in black zinc for high strength and wear resistance. It includes M3 bolts, M3 nuts, and two hex keys, and ships in a transparent plastic box for easy storage and quick access. It's a handy choice for plumbing, industrial machinery, construction, automotive, marine, bicycle, 3D printer components, and DIY projects.

✅ Material: 12.9-grade carbon steel with a black zinc finish for strong, durable fasteners
✅ Includes M3 bolts, nuts, and 2 hex keys for immediate use
✅ Sizes: M3 x 4, 5, 6, 8, 10, 12, 16, 18, 20 mm
✅ Packaging: stored in a transparent plastic box with individual bags to prevent loss

💡 What is a handy question people ask about M3 hex socket screw kits and what’s a clear answer?

These handy kits are built to simplify small assemblies, giving you reliable fasteners and the tools to install them quickly.

• High-strength 12.9-grade carbon steel provides solid performance in everyday projects
• Black zinc finish adds corrosion resistance for long-term use
• Includes nuts and two hex keys to speed up assembly and maintenance
• Varied lengths from 4 to 20 mm cover most common mounting needs