77pcs Manual Rivet Nut Tool Kit M3-M12 Carbon Steel Nutsert Riveting Adapter Set

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77Pcs Rivet Nut Tool Kit M3-M12 Mandrel Head Set Carbon Steel Rivnut Insert Installer for Manual Electric Pneumatic Gun Auto 77-Piece Rivet Nut Solution】
This comprehensive kit includes 7 high-precision mandrel heads (M3, M4, M5, M6, M8, M10, M12) and 70 matching flat-head rivet nuts (10 of each size). It provides a full range of fastening solutions for thin sheet metal, aluminum, and plastic, eliminating the need to buy separate sizes.

【Premium Carbon Steel Construction】
The innovative dual-bearing washer design significantly reduces friction and prevents stripping under heavy torque, ensuring a longer lifespan and reliable performance for professional mechanics and DIY enthusiasts.

【Universal Compatibility & Easy Swap】
Designed to fit most standard manual rivet guns, electric drill adapters, and pneumatic riveting tools. The mandrel heads feature a user-friendly twist-on design, allowing for quick size changes without complex calibration. Perfect for installing threaded inserts in tight spaces or on production lines.

【Versatile Applications】
Ideal for automotive bodywork, license plate installation, bicycle frame repair, shelving assembly, and industrial metal fabrication. This kit excels in applications where traditional tapping fails, providing strong, vibration-resistant threads in thin-walled materials.

【Precise Specifications for Every Job】
Each size is engineered for specific material thicknesses: M3-M6 handles 0.5-3.5mm sheets, while M8-M12 supports up to 5.0mm. The kit ensures accurate hole preparation and secure fastening, making it a must-have for workshops, garages, and home improvement High-Carbon Steel

Mandrel Sizes: M3, M4, M5, M6, M8, M10, M12

Total Quantity: 77 Pieces (7 Heads+70 Nuts)

Applicable Material Thickness: M3: 0.5-1.5mm | M4: 0.5-2.5mm | M5: 0.5-3mm|M6: 0.5-3.5mm | M8: 0.5-3.5mm | M10: 1.0-4.0mm | M12: Install the step drill: make sure the step drill is properly installed and prepare the required material and tools

2. Drill holes according to the requirements: Drill holes in the correct locations according to the size and position. Ensure that the holes are accurate and consistent.

3. Install the rivet nut: Select a rivet nut of the correct size and install it in the drilled holes. Make sure the rivet nut fits the hole.

4. Attach the hexagon socket: Use a hexagon socket to tighten the rivet nut. Ensure that the rivet nut is firmly seated in the hole.

5. Loosen the retracting bolt: use the appropriate tool to pull out the bolt in the opposite direction to ensure that the rivet nut is firmly seated.

6. Complete the riveting: After completing the above steps, perform the final riveting to ensure the rivet nut is firmly seated in the hole.

Package Includes:

7 x Rivet tool mandrels(M3, M4, M5, M6, M8, M10, M12)

10 x M3 Nuts

10 x M4 Nuts

10 x M5 Nuts

10 x M6 Nuts

10 x M8 Nuts

10 x M10 Nuts

10 x M12 Nuts