Badass Heavy Duty 12.9 Grade Metric Hex Bolt And Nut Assortment Kit With Rugged Spring And Flat Washers 960 Piece Pro Level Hardware Set For Serious Mechanic And Workshop Builds

Pro Grade Metric Hex Bolt Assortment Kit For Shops
✔️ 12.9 grade black bolts with washers in M4 to M8 sizes

This nine hundred sixty piece bolt set gives you exactly what you need to keep workshops running smoothly. The heavy duty pieces organize neatly inside a detachable storage box so you never waste time hunting for fasteners. Whether you are assembling custom fabrication frames or tightening down suspension components during daily car maintenance, these metric hex screws hold firm under constant vibration.

✅ Nine hundred sixty count covers thirty three common length ranges from twelve to forty millimeters
✅ High tensile one two point nine rating handles demanding torque loads without stripping
✅ Includes matching lock and flat washers rated for eight and twelve grades plus heavy plastic case
✅ Clean matte black finish resists rust buildup and prevents stray metal shavings in tight bays

💡 What makes a serious hardware assortment handy for tough shop jobs?
- Premium metric hex screw kits reduce downtime because you already own the right sizes for brake lines and motor mounts.
- One two point nine steel stands up to heavy torque without rounding off corners.
- The lidded case keeps everything neat on a crowded workbench so you stay focused.

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