DFDU M8 Rivet Nuts, 110 Pieces Review
A DFDU M8 rivet nut kit with 110 zinc plated carbon steel pieces, threaded to an M8 x 1.25 pitch, with an 18mm total length and a 14.5mm head diameter, sorted by size in a clear storage case.
| Brand | DFDU |
|---|---|
| Part / Model number | RN-002 |
| Thread size | M8 x 1.25 |
| Quantity | 110 pieces |
| Grip range | 1.0-3.5mm |
| Drill hole size | 10.9-12.62mm |
| Best for | Buyers needing a bulk, organized supply of M8 rivet nuts for metal sheet or furniture work |
Product Overview
DFDU builds this as a bulk, organized rivet nut kit rather than a loose bag of hardware, aimed at automotive, furniture and general DIY work needing M8 threaded inserts.
Each piece is designed for one-sided installation using a rivet nut tool, expanding the tail to form strong internal threads on thin plates or closed profiles where a regular nut can't be used.
Score Breakdown
This verdict is based on the manufacturer's stated specifications, the current Amazon listing and its product images, the confirmed materials and design, real buyer ratings, and our research into the product category. Scores are consistent editorial judgments, not laboratory measurements, and we did not receive a paid sample.
Key Features
Compatible with standard M8 bolts.
Corrosion resistance in dry or humid conditions.
Firm, flush, secure grip.
Resists slippage and loosening after riveting.
110 pieces organized by size.
Design and Build Quality
The kit carries part and model number RN-002, with each piece threaded to an M8 x 1.25 pitch, finished in zinc plated carbon steel. Individual pieces measure an 18mm total length with a 14.5mm head diameter, suited to a material grip range of 1.0 to 3.5mm and a drill hole size of 10.9 to 12.62mm.
A flat head design with deep, vertical threads is built for a firm, secure grip that sits flush, while a knurled body is specifically meant to embed during riveting and resist slippage or loosening afterward. All 110 pieces ship individually sorted by size in a sturdy, clear storage box.
Performance in Everyday Use
Thread precision is the core performance claim: the internal threads are formed specifically for compatibility with standard M8 bolts, aimed at a secure, accurate fit rather than a loose generic thread.
Corrosion resistance comes from the zinc plated finish, suited to dry or mildly humid environments, while the knurled body and deep vertical threads are built to resist loosening under vibration or repeated use once installed.
How It Performs: The Evidence
| Decision factor | What we found | Evidence and measurement | Score | Why it matters |
|---|---|---|---|---|
| Thread compatibility | M8 x 1.25 | Listing states precisely formed internal threads for compatibility with standard M8 bolts at M8 x 1.25 thread pitch | 8.3 | Confirms the stated thread specification |
| Grip range | 1.0-3.5mm | Listing states suitable for material thickness of 1.0-3.5mm | 8.0 | Confirms the stated grip range |
| Drill hole size | 10.9-12.62mm | Listing states a drill hole size of 10.9-12.62mm | 8.0 | Confirms the stated installation hole requirement |
| Dimensions | 18mm length, 14.5mm head | Listing states the total length is 18mm and the head diameter is 14.5mm | 8.1 | Confirms the stated piece dimensions |
| Material | Zinc plated carbon steel | Listing states each nutsert is made of carbon steel with a zinc plated finish | 8.2 | Confirms the stated material composition |
| Quantity | 110 pieces | Listed size is M8 110pcs | 8.4 | Confirms the stated kit quantity |
Who Should Buy It
- Automotive repair and furniture assembly
- Bicycle maintenance and appliance installation
- Thin sheet metal, steel or aluminum projects
- Buyers wanting bulk, organized hardware
- Anyone needing a different thread size rather than M8 x 1.25
- A rivet nut installation tool is required and not included, per the listing's own note
- Suited to a specific 1.0 to 3.5mm material grip range, not every sheet thickness
- A single M8 x 1.25 thread size limits use to matching bolts
- Sold in this yellow-cased kit on this listing
Full Specifications
How It Compares
| Feature | DFDU | Typical option | Higher-tier option |
|---|---|---|---|
| Thread precision | Precisely formed M8 x 1.25 threads | Looser-tolerance generic threads | Comparable precision-threaded rivet nut |
| Material | Zinc plated carbon steel | Bare, unplated steel | Comparable zinc plated nutsert |
| Grip design | Flat head, deep vertical threads | Shallow thread, less secure grip | Comparable deep-thread rivet nut |
| Anti-loosening | Knurled body resists slippage | Smooth body, more prone to loosening | Comparable knurled-body rivet nut |
| Storage | 110 pieces sorted in a clear case | Loose, unsorted bag of pieces | Comparable organized rivet nut kit |
Alternatives Worth a Look
A 110 piece M8 x 1.25 zinc plated carbon steel rivet nut kit, sorted by size in a clear storage case. It suits buyers needing a bulk, organized supply of threaded inserts for automotive, furniture or general DIY work, with a separate rivet nut tool required for installation.
Frequently Asked Questions
How many rivet nuts are in this kit?
110, per the listing.
What thread size is used?
M8 x 1.25.
What material thickness does it fit?
A grip range of 1.0 to 3.5mm.
What drill hole size is needed?
10.9 to 12.62mm, per the listing.
Is a tool included?
No, a rivet nut tool is required and not included.
How are the pieces organized?
Sorted by size in a sturdy, clear storage box.
This review is based on the manufacturer's stated thread specifications, dimensions, material and included organization as listed. It is editorial analysis of the stated specifications, not independent hands on testing of this specific kit's installed grip strength or long-term corrosion resistance.