Heavy Duty M4 Screws Kit With 304 Stainless Steel Hex Socket Head Bolts Nuts And Washers, 520 Pieces, Assorted Lengths 6/8/10/12/16/20/25/30mm, Perfect For 3D Printer DIY Projects And Everyday Mechanical Fixes

Heavy Duty M4 Screw Kit: 520pcs in 8 lengths, 304 SS
✔️ M4 hex socket bolts (304 stainless), 8 sizes, 520 pcs in box

This heavy-duty M4 screws kit includes 304 stainless steel hex socket head bolts, nuts, and washers in a labeled transparent storage box. It’s designed for easy organization and quick access, making it ideal for 3D printers, electronics enclosures, cabinets, bicycles, and other DIY projects.

✅ 304 stainless steel construction resists corrosion and rust
✅ M4 hex socket cap screws in 6/8/10/12/16/20/25/30 mm lengths
✅ Includes hex nuts, spring washers, and flat washers for secure assemblies
✅ 520 pieces packaged in a transparent labeled storage box for easy sorting
✅ Widely used in 3D printers, electronics, cabinets, bikes, and home projects

💡 What is a handy use case for an M4 stainless steel screw kit in DIY and professional settings?

Handy for quick builds and repairs across hobbyist and shop scenarios.

• 8 screw lengths (6-30 mm) cover common fastener needs
• 304 stainless steel resists corrosion in humid areas
• Nuts and washers included for secure assemblies
• Storage box helps keep parts organized and accessible

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