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YOOPIN Rivnut Kit Review: Reliable threaded inserts for everyday metal fixings

YOOPIN 250PCS Rivnut Kit, Zinc Plated Carbon Steel Rivet Nut, M3 M4 M5 M6 M8 M10 Rivnuts Assortment Set, Flat Head Threaded Insert Nut for Metal Sheets, Electrical Appliances and Industrial Products
4.6
[Comprehensive Size Range]  250-piece kit with six sizes covering M3–M10 for varied fastening needs.
[High-Quality Material]  Made from zinc-plated carbon steel for corrosion and oxidation resistance.
[Knurled Internal Threads]  Knurled internal threads ensure tighter screw engagement and reduce loosening.
[Easy Installation]  Simple install: choose size, insert into pre-drilled hole, then rivet.
[Versatile Applications]  Ideal for steel, fiberglass, and plastic in furniture, maintenance, and industrial use.
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Rivnut and threaded insert kit for fast, durable fixings across metal, plastic and fibre materials. The YOOPIN Rivnut Kit helps tradespeople and keen DIYers achieve secure, low-maintenance joints. Does the assortment cover most workshop tasks?

⚡ At a Glance
  • Fixing Strength: Knurled internal threads lock screws firmly, reducing loosening under vibration and load
  • Best for: DIY enthusiasts, furniture installers and light industrial maintenance who need reliable threaded inserts
  • Not ideal for: Permanent welded joints or applications requiring non-threaded one-piece fastenings

Knurled-threaded inserts made from zinc-plated carbon steel for corrosion resistance. Supplied as a 250-piece assortment covering common M3 to M10 sizes.


Secure, vibration-resistant joints - with knurled internal threads

Knurled internal threads create a mechanical interlock between the insert and parent material, distributing stress along the body. The knurl pattern prevents rotational movement and improves screw engagement under cyclical loads.

Screws stay tight in panels subject to vibration, reducing maintenance and rework for furniture and equipment fixes.

Long-lasting corrosion protection - thanks to zinc-plated carbon steel

Zinc plating forms a protective barrier against oxidation while carbon steel provides the tensile strength required for threaded inserts. The combination keeps the threaded interface usable in harsher environments.

Fastenings retain strength and appearance over time, suitable for workshops and light industrial use where moisture or exposure might otherwise cause rust.

Ready for most jobs - with a 250-piece mixed-size assortment

The kit contains specific counts of M3, M4, M5, M6, M8 and M10 inserts in the sizes listed, covering common screw diameters used in assembly and repair. Pre-sorted quantities reduce the need to source individual sizes.

Enough inserts on hand for routine installations and repairs, cutting trips to suppliers and keeping work moving smoothly.

✨ The 4 Key Reasons for YOOPIN Rivnut Kit
  1. Comprehensive size mix - Covers M3 to M10 sizes, 250 pieces suit varied repair jobs
  2. Durable zinc plating - Helps resist corrosion for longer service life outdoors or in workshops
  3. Knurled internal profile - Improves screw bite, reducing loosening from vibration and movement
  4. Riveting-tool installation - Fits standard riveting tools for quick, reliable on-site fastenings
📋 Technical Details at a Glance
  • Category: Fastening hardware
  • Contents: 250 pieces total, assorted counts by size
  • Sizes included: 90 x M3 × 9mm, 50 x M4 × 11mm, 40 x M5 × 13mm, 40 x M6 × 15mm, 20 x M8 × 10mm, 10 x M10 × 21mm
  • Material: Carbon steel core
  • Finish: Zinc plated
❓ Frequently Asked Questions

Q: What sizes are included in the kit?

A: The assortment contains M3, M4, M5, M6, M8 and M10 sizes with specific counts for each size as listed in the product description.

Q: What material are the rivnuts made from?

A: Rivet nuts are manufactured from zinc-plated carbon steel, offering corrosion and oxidation resistance.

Q: Can these rivnuts be used on plastic and fibreglass panels?

A: Yes, rivnuts are suitable for fastening steel, fibreglass and plastic according to the product description.

🏆 Our Verdict

The YOOPIN Rivnut Kit suits DIYers, tradespeople and light industrial users who need a ready supply of threaded inserts. A wide size mix combined with knurled internal threads and zinc plating makes for robust, low-maintenance fixings. Given the durable materials and useful assortment, the kit represents a practical long-term addition to any workshop.