The knidist Pedal Nut Kit Rivet Tool includes M4, M5, and M6 threaded inserts for common fastening, repair, and assembly work. Its petal-expansion design creates an anchor behind the mounting surface, while zinc-plated carbon steel supports everyday use.
Quick Verdict
This is a straightforward option for one-side panel fastening when you need several common metric insert sizes. The expandable petal-shaped body is designed to grip behind the panel, and the zinc-plated carbon-steel construction suits routine repair and assembly tasks.
Best for DIY fastening, panel repairs, and assemblies requiring M4, M5, or M6 threaded inserts.
- M4 M5 M6 Size Assortment: Button Rivet Locking Nut Assortment includes M4, M5 and M6 sizes for common fastening, repair and assembly jobs. This multi-size selection gives you practical options for sheet metal, equipment panels, furniture, workshop maintenance and DIY installation projects
- Petal Expansion Grip: The M4 M5 M6 Petal Rivet Nut Set uses an expandable petal-shaped body that opens behind the mounting surface to create a stable threaded anchor. These expansion locking nuts are especially useful for thin panels and hollow sections where a conventional nut is difficult to secure
- Zinc Plated Carbon Steel: Each Button Rivet Locking Nut is made from carbon steel with a zinc-plated finish for dependable everyday use. The durable construction helps resist moisture, oxidation and normal surface wear while maintaining a secure threaded connection for garage, workshop and home repair applications
- One Side Panel Fastening: Button Rivet Locking Nuts Set provides a practical solution when you cannot reach the back of a panel to hold a standard nut. Insert the fastener from the accessible side and create an internal threaded mounting point for automotive panels, enclosures, cabinets and other compatible materials
- Versatile Repair Applications: Use this Petal Rivet Nut Set for automotive sheet metal, machinery maintenance, equipment housings, furniture reinforcement, cabinets, thin-wall panels and general DIY projects. The assortment gives mechanics, maintenance users and home repairers a convenient fastening option for multiple installation needs
Key Takeaways
- Includes M4, M5, and M6 sizes.
- Expands behind panels for one-side fastening.
- Uses zinc-plated carbon steel construction.
Multi-Size Fastening
The assortment covers M4, M5, and M6 sizes, giving you three common metric options in one kit. That range can simplify projects involving different screw sizes, repairs, or assemblies. The official listing identifies the package color as 15PCS, while the product is described as a button rivet locking nut assortment.
Petal Expansion Design
Each insert uses an expandable, petal-shaped body. Once positioned through a mounting surface, the body opens behind the panel to form a threaded anchor. This design is intended for situations where reaching the rear side to hold a conventional nut is difficult or impossible, making one-side installation the central use case.
Material and Finish
The inserts are made from carbon steel and finished with zinc plating. According to the supplied product information, this construction is intended for dependable everyday use and helps resist moisture. The kit is listed under Home Improvement and has a compact stated size of 3.54 by 1.18 by 1.57 inches.
Pros
- Three metric sizes
- One-side panel fastening
- Petal-shaped expansion
- Zinc-plated carbon steel
Cons
- Size is listed as one size
- Limited supplied specifications
Buying Advice
Choose this kit when your project uses M4, M5, or M6 screws and access behind the panel is restricted. Confirm the required insert size and panel application before ordering, since the supplied listing does not specify compatibility details beyond its stated assortment
Frequently Asked Questions
Which insert sizes are included?+
The assortment includes M4, M5, and M6 threaded inserts for common fastening, repair, and assembly applications.
Why use these rivet nuts?+
Their expandable petal-shaped bodies create a threaded anchor behind a panel when the rear side is difficult or impossible to reach.






