178 Piece M6 12.9 Grade Black Steel Socket Cap Screws Nuts Washers Kit for Heavy Duty Projects, High Torque Fasteners to Prevent Screw Head Strains, All in One Durable Fastener Set for Builders and Gearheads
✔️ 178-piece M6 12.9 grade kit with nuts, washers, and box
This heavy-duty M6 12.9 grade black steel socket cap screws kit combines eight bolt lengths from 8mm to 35mm with matching nuts, flat washers, spring washers, and a precision Allen wrench in a labeled organizer box. It's designed for heavy-duty automotive work, furniture builds, and industrial machinery where strong fasteners and corrosion resistance matter.
✅ 12.9 grade carbon steel bolts for high-torque needs
✅ 8 lengths available: 8mm, 10mm, 12mm, 16mm (8pcs each); 20mm, 25mm, 30mm, 35mm (4pcs each)
✅ Black zinc finish resists rust and looks sleek on dark projects
✅ Includes nuts, flat washers, spring washers, and a precision Allen wrench
💡 What is a high-tensile M6 bolt kit used for in rugged builds?
Handy for automotive and industrial projects where strong fasteners prevent head failure and ensure long life.
- High-tensile 12.9 grade bolts resist head shear in high-torque environments- Includes nuts, flat washers, spring washers for complete assembly
- Black zinc finish adds corrosion resistance and a stealth look
- Comes with a precision Allen wrench and reinforced organizer box
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