Complete M3-M12 Metric Rivet Nut Mandrel Set – 77 PCS All-in-One Kit

Upgrade your workshop with this comprehensive rivet nut kit. Designed for mechanics, DIYers, and professionals, this 77-piece set provides the precise mandrels and matching rivet nuts you need for fastening sheet metal, pipes, and thin materials. No more guesswork or ordering multiple sets—everything you need is in one box.

✨ Key Features:

🔧 Complete 77-Piece Metric Assortment: Covers common metric sizes from M3 up to M12. Each size includes a matching mandrel and corresponding rivet nuts, ensuring you always have the right size on hand for any fastening task.
🛡️ Durable Carbon Steel Construction: Crafted from hardened carbon steel, these mandrels and accessories are built for regular workshop use. The robust material resists wear and deformation, delivering long-lasting performance for daily repairs and heavy-duty assembly.
⚙️ Wide Tool Compatibility: Designed to work with most hand riveters, manual rivet nut guns, and suitable drill-operated setups. Simply thread the hex head onto your tool—use a wrench for manual operation or attach to an electric drill for faster, power-assisted pressing.
🛠️ Versatile Applications: Ideal for automotive repair, furniture assembly, metalworking, equipment maintenance, home improvement, and general workshop projects. Perfect for attaching brackets, panels, and structural components in construction, farming machinery, and electromechanical installations.
📦 Ready-to-Use Accessory Set: This 77-piece package includes both the mandrel accessories and matching rivet nuts. Everything comes in one organized box for smooth, efficient fastening.

📋 Specifications:

Item	Details
Quantity	77 Pieces
Thread Sizes	M3, M4, M5, M6, M8, M10, M12
Material	Hardened Carbon Steel
Compatibility	Hand Riveters, Manual Rivet Nut Guns, Drill-Operated Setups
Package Type	Accessory Kit (Mandrels & Rivet Nuts)

⚠️ Important Notes Before Ordering:

Tool Not Included: This is an accessory kit (mandrels & nuts only). It is NOT a complete riveter tool. Please check your existing tool type before purchasing.
Size Verification: Please verify your required mandrel thread size and tool compatibility before ordering to ensure a perfect fit.
Color Disclaimer: Due to lighting and monitor differences, the actual color may vary slightly from the pictures.

📦 Package Includes:

77 × Metric Rivet Nut Mandrel & Nut Set (M3-M12)
(Please refer to the size chart in the listing images for exact quantity breakdown per size.)

Brand	Unbranded
Type	Hex Nuts
Number in Pack	77
Material	Steel
Country of Origin	China

Carbon Steel Hand Riveter kit, Rivet Nut Tool Set, Rivet Nut Mandrel Set M3-M12

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