Item # RNN025C2SY
1/4-20 UNC FLANGE KNURLED BODY RIVETNUT, 0.165-0.260" GRIP, STEEL, YELLOW ZINC PLATED
Item # RNN025C2SY
1/4-20 UNC FLANGE KNURLED BODY RIVETNUT, 0.165-0.260" GRIP, STEEL, YELLOW ZINC PLATED
- UM: EA
- Brand: RIVETKING
The RNN025C2SY is a 1/4-20 steel, yellow zinc plated flange-style knurled body rivet nut from the RivetKing IKF (low profile head) thinwall series. Designed for blind installation in sheet metal and panel applications where threads are needed but back-side access is impractical, this rivet nut installs from one side of the workpiece and provides a permanent threaded socket once set.
Typical applications: Heavy use in automotive accessories, off-road vehicle modifications, equipment manufacturing, panel mounting, and general industrial fabrication where moderate load capacity is needed. The steel, yellow zinc plated material is well-suited to general industrial, automotive, equipment manufacturing, structural, sheet metal fabrication.
Specifications
| Property | Value |
|---|---|
| Thread Size | 1/4-20 UNC |
| Material / Finish | Steel, Yellow Zinc Plated |
| Series | IKF (RivetKing thinwall, low-profile head, knurled body) |
| Grip Range | 0.165-0.260" |
| Recommended Drill / Hole Size | 0.391" |
| Head Diameter | 0.500" |
| Body Diameter | 0.390" |
| Length (open end) | 0.680" |
| RivetKing Part # | 25C2IKFSY |
Installation: Drill a 0.391" hole in the workpiece. Insert the RNN025C2SY from the accessible side and set with a rivet nut tool — the body collapses against the back side of the panel and the knurled flange grips the front side to prevent rotation under torque. Recommended grip range is 0.165-0.260" (sheet thickness).
For step-by-step instructions: see our How to Install Rivet Nuts guide for the complete process, common mistakes, and verification tips.
Tool selection: Use a pneumatic or hydraulic rivet nut tool for production volume. A battery-powered cordless tool also works well at this size. Hand tools are workable for occasional installs but become fatiguing in volume. Both spin-spin and spin-pull tool types are compatible with the IKF series.
Technical Notes
| Property | Value |
|---|---|
| Recommended Bolt Torque | 75 in-lbs (per RivetKing Rev. B test data) |
| Static Pull-Out Strength | 1,110 lbf in 0.062″ steel sheet |
| Push-Out Strength | 2,670 lbf in 0.125″ steel sheet |
| Spin-Out Resistance (anti-rotation) | 40 in-lbs in steel |
| Hole Tolerance | +0.006″ / -0.000″ (per RivetKing 2025 catalog) |
| Material Certification | Steel, Yellow Zinc Plated — RoHS Compliant |
| Installation Tool Compatibility | Compatible with spin-pull or spin-spin rivet nut installation tools. Knurled body collapses against panel back-side during setting. |
| Installation Reference | See our step-by-step installation guide for the complete process and verification methods. |
Performance values per RivetKing Rev. B test data (May 2023), tested in zinc-plated steel installed in flat sheet stock under laboratory conditions. Actual performance in your application varies with panel material, hole tolerance, installation, and environmental factors. Reference only — not for use as design loads without independent validation. See full performance reference and disclaimer.
Manufacturer Cross-References
| Manufacturer | Part Number |
|---|---|
| RivetKing | 25C2IKFSY |
| AVK | ALS4-420-260 |
| Atlas | AELS8-420-260 |
| Marson | 57354 |
| Sherex | CAL2-2520-260 |
| Industrial Rivet & Fastener | 25C2IKFSY |
| Brighton-Best (BBI) | (BBI crossover available — call for cross-reference) |
Searching for a different brand? Eugene Fastener can cross-reference RivetKing IKF parts to AVK, Sherex, POP/Avdel, Goebel, and other major rivet nut manufacturers. Call us with any part number for a same-day match.
Related products: Need a different grip range? See the other 1/4-20 IKF rivet nuts in our catalog. Need a different material? Available in steel yellow zinc, aluminum, and 18-8 stainless. Looking for the installation tool? See our Rivet Nut Tool Selection Guide.
Helpful resources: Selection Guide · Drill Bit & Hole Size Chart · Tool Selection Guide · How to Install · Rivnut vs. Plus / Jack / Well / PEM Comparison.
In stock at Eugene Fastener & Supply. Shipping nationwide. Same-day shipping on orders placed before 2pm Pacific.
| Diameter | 1/4 |
| Thread Pitch | 20 |
| Material | Steel |
| Min Grip | 0.165 |
| Max Grip | 0.260 |
| Hole Diameter | 0.391 |
| Finish | Yellow Zinc |
| Thread Type | Coarse |