77Pcs Carbon Steel Rivet Nut Tool kit Mandrel Head Set M3-M12 Rivets Tool

This 77-piece rivet nut tool kit gives you everything you need to install threaded inserts quickly and securely in a single package. The set includes 7 mandrel adapters designed for use with standard riveting tools, along with 70 rivet nuts — 10 pieces each in sizes M3, M4, M5, M6, M8, M10, and M12 — covering the most popular metric thread sizes for automotive, metal fabrication, and DIY projects. The mandrel adapters feature precision threads for smooth, accurate operation and a black oxide coating that resists rust, corrosion, and daily wear. Each rivet nut has a high-strength metal body with a knurled insert design that increases grip and prevents rotation for a solid, tight fit. Installation is straightforward in just four steps: drill the correct size hole, thread the rivet nut onto the matching adapter, insert and tighten using two wrenches or a drill, then reverse and remove the tool. The reusable adapters make this kit a long-term addition to any toolbox.

• 77-PIECE COMPLETE KIT: Includes 70 rivet nuts (10 each of M3, M4, M5, M6, M8, M10, and M12) plus 7 matching mandrel adapters for riveting tools.Paper box and bubble wrap packaging to protect your products
• DURABLE METAL CONSTRUCTION: High-strength metal body with a black oxide coating resists rust, corrosion, and daily wear for long-lasting reliability.
• KNURLED INSERT DESIGN: The knurled body increases grip and prevents rotation, ensuring a solid, tight fit every time the rivet nut is installed.
• EASY 4-STEP INSTALLATION: Simply drill the correct hole size, thread the rivet nut onto the adapter, tighten with two wrenches or a drill, then reverse and remove the tool.
• WIDE APPLICATION: Suitable for automotive, metal fabrication, DIY projects, and more — the reusable mandrel adapters work across all 7 included size ranges.