Head Rivet Nut Tool (M3 M4 M5 M6 M8 Rivnut Kit)

Head Rivet Nut Tool (M3 M4 M5 M6 M8 Rivnut Kit)

 (128 Reviews)
$24.90
$24.90 $45.90
SAVE 45% Sold out

Forget searching for mismatched parts or separate components. This comprehensive kit features a meticulously organized collection in a heavy-duty, clear plastic storage case with secure latches. The inner lid features a clear, easy-to-read diagram detailing every component, including part numbers, sizes, and dimensions, making selection quick and error-free.
Head Rivet Nut Tool (M3 M4 M5 M6 M8 Rivnut Kit)

Head Rivet Nut Tool (M3 M4 M5 M6 M8 Rivnut Kit)

$24.90
$24.90 $45.90
SAVE 45% Sold out
  • Automotive repairs and body panels
  • HVAC and ductwork installation
  • Mechanical assemblies and metal framing
  • DIY home workshop projects
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Wide Application

High Strength & Durable

Precise & Secure Fit

Easy To Use

Wide Application

High Strength & Durable

Precise & Secure Fit

Easy To Use

Wide Application

High Strength & Durable

Precise & Secure Fit

Easy To Use

Wide Application

High Strength & Durable

Precise & Secure Fit

Easy To Use

Wide Application

High Strength & Durable

Precise & Secure Fit

Easy To Use

Wide Application

High Strength & Durable

Precise & Secure Fit

Easy To Use

Wide Application

High Strength & Durable

Precise & Secure Fit

Easy To Use

Wide Application

High Strength & Durable

Precise & Secure Fit

Easy To Use

Wide Application

High Strength & Durable

Precise & Secure Fit

Easy To Use

Wide Application

High Strength & Durable

Precise & Secure Fit

Easy To Use

Multi-Size Compatibility

  • Smallest, delicate tasks

  • Light-duty fastenings

  • Medium-duty, general-purpose

  • Heavy-duty, strong connections

  • Largest, maximum strength

    Premium Manual Riveting Solution

    Sturdy & Durable Construction: Built from high-strength, wear-resistant materials designed to withstand heavy everyday use without warping or degrading.

    Optimized for Manual Control: Features an ergonomic, high-leverage handle design that maximizes your output with minimal effort, giving you perfect control over every rivet.

    Heavy-Duty Carbon Steel

    Industrial-Grade Carbon Steel: Built for exceptional strength, high hardness, and long-lasting durability under heavy use.

    Built to Last: Loved by DIYers and Professionals Alike

    • Got this as a Father’s Day gift for my dad, who is notoriously hard to buy for because he already has every tool imaginable. Turns out, he didn’t have a reliable rivnut setup! He’s already used the M6 and M8 sizes for some custom racks in his truck and keeps raving about how smooth the wrench-tightening design is. Perfect practical gift."

      — Marcus L., Verified Buyer

    • "I’ve used cheaper kits before where the mandrels stripped after two uses, but the RICHRIG set is premium quality. The wrench-compatible hex shoulder gives you excellent leverage and control when setting the nut into sheet metal. The connections are rock solid. If you want a tight, professional finish, this is the kit to get."

      — Jason T., DIY Enthusiast

    • "I love how well-organized this kit is. The heavy-duty case actually stays latched in my toolbox, and the internal sizing guide means I’m not digging around trying to eye-ball different thread sizes. Used it for a quick home project using the M4 size, and the threads held perfectly. Excellent product!"

      —Mark R., Home Hobbyist

    • "Trying to weld nuts onto thin metal backing sheets is a nightmare. This rivet nut kit solved my problem in seconds. The mandrels hand-screw seamlessly, and using a standard wrench to crimp them down is effortless. It delivers a perfectly flush, permanent threaded hole every single time. Wish I bought this years ago."

      — Brian G., Custom Fabricator

    • "As a warehouse maintenance technician, I use rivet nuts constantly. This set is built to last—the carbon steel construction feels heavy-duty, and the hex shank design fits perfectly with my manual tools. Getting 50 zinc-plated rivet nuts included as a bonus makes this an absolute steal. It paid for itself on day one."

      — David K., Contractor

    • "I bought this kit to replace some stripped threads on a classic car restoration project, and it worked flawlessly. The variety of metric sizes from M3 up to M8 covered everything I needed. The clear diagram on the lid made it incredibly easy to grab the right mandrel and matching rivnut without second-guessing. Highly recommend for any garage!"

      — Chad B.., Verified Buyer

      FAQs

      The kit includes a versatile range of 5 popular metric sizes to handle various projects: M3, M4, M5, M6, and M8. Each size comes with its corresponding mandrel and tool accessory, plus a selection of matching rivet nuts.

      You receive a total of 10 specialized tool accessories/mandrels and a bonus gift of 50 high-quality rivet nuts, all neatly organized in a heavy-duty, labeled storage case.

      What materials can these rivet nuts be installed in?

      These zinc-plated carbon steel rivet nuts are ideal for creating permanent, strong threads in thin materials where tapping threads is difficult or impossible. They work exceptionally well on sheet metal, steel, aluminum, plastics, and fiberglass.

      Not necessarily! While the universal hex shanks are compatible with standard manual rivet guns and power drill adapters, the unique design features a wrench-compatible hex shoulder. This allows you to manually set and crimp the rivet nuts securely using a standard wrench for maximum control.

      Yes. The rivet nuts are constructed from heavy-duty carbon steel and finished with a premium zinc plating, which provides excellent resistance to rust, oxidation, and corrosion—even in tough automotive or warehouse environments.

      The clear storage case features an easy-to-read, detailed diagram on the inside lid. It perfectly matches each compartment, listing the exact dimensions and sizes (such as M3 or M8) so you can identify the right parts instantly.