All In One Metric Screw Kit With 860 Piece Assortment For 3D Printing And Diy M3 To M6 Hex Socket Head Cap Bolts Nuts And Washers Grade 12.9 Alloy Steel Black Zinc Plated Rust Resistant Upgrade

Comprehensive Metric Screw Kit: 860-Piece M3-M6 Fasteners
✔️ 860 pcs screws, nuts, washers; 12.9 grade alloy steel; black zinc

This all-in-one metric screw kit includes M3, M4, M5, and M6 hex socket head cap screws, mating nuts, washers, and four Allen wrenches for quick tightening. It’s designed for 3D printing, electronics assembly, furniture repair, and hobby projects, both indoors and outdoors.

✅ 860 pieces total: screws, nuts, washers with four Allen wrenches
✅ Includes M3-M6 sizes in multiple lengths to fit different jobs
✅ 12.9 grade alloy steel with black zinc coating for rust resistance
✅ Organized in a clear plastic box with labeled compartments for easy selection

💡 What is a metric hex socket screw kit used for in hobby and workshop projects?

It’s handy for tidy assemblies and fastener organization across DIY builds.

• complete M3-M6 hex socket head cap screws, nuts, and washers for ready-to-use assemblies
• rust-resistant black zinc finish suitable for indoor and outdoor use
• includes four Allen wrenches for on-the-spot tightening
• great for 3D printers, electronics, furniture repairs, and RC hobbies