Item # RNNM04C2AP
M4 FLANGE KNURLED BODY RIVETNUT, 2.00-3.30mm GRIP, ALUMINUM, PLAIN
Item # RNNM04C2AP
M4 FLANGE KNURLED BODY RIVETNUT, 2.00-3.30mm GRIP, ALUMINUM, PLAIN
- UM: EA
- Brand: RIVETKING
The RNNM04C2AP is a M4 aluminum, plain 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: Common in light-gauge sheet metal, electronics enclosures, HVAC ductwork, signage, and consumer-product assembly where smaller diameter fasteners are appropriate. The aluminum, plain material is well-suited to lightweight applications, automotive aftermarket, aerospace, off-road, marine fittings, electronics enclosures.
Specifications
| Property | Value |
|---|---|
| Thread Size | M4 |
| Material / Finish | Aluminum, Plain |
| Series | IKF (RivetKing thinwall, low-profile head, knurled body) |
| Grip Range | 2.00-3.30mm |
| Recommended Drill / Hole Size | 6.75mm |
| Head Diameter | 9.91mm |
| Body Diameter | 6.73mm |
| Length (open end) | 11.94mm |
| RivetKing Part # | .40C2IKFAP |
Installation: Drill a 6.75mm hole in the workpiece. Insert the RNNM04C2AP 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 2.00-3.30mm (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 hand-operated lazy-tongs spin-spin or spin-pull rivet nut tool for low-volume installs, or a pneumatic rivet nut gun for production. Battery-powered cordless rivet nut tools are well-suited to this thread size. Both spin-spin and spin-pull tool types are compatible with the IKF series.
Technical Notes
| Property | Value |
|---|---|
| Recommended Bolt Torque | 21 in-lbs (per RivetKing Rev. B test data) for steel bolts. Reduce by ~50% when bolting INTO this aluminum rivet nut to avoid thread stripping. |
| Static Pull-Out Strength | 3.7 kN in 0.062″ aluminum sheet |
| Push-Out Strength | 180 lbf in 0.125″ steel sheet |
| Spin-Out Resistance (anti-rotation) | 6.5 in-lbs in aluminum |
| Hole Tolerance | +0.006″ / -0.000″ (per RivetKing 2025 catalog) |
| Material Certification | Aluminum, Plain Finish |
| 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 | .40C2IKFAP |
| Industrial Rivet & Fastener | .40C2IKFAP |
| AVK / Atlas / Marson / Sherex | Equivalent versions available — call for specific cross-reference |
| 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 M4 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 | M4 |
| Thread Pitch | 0.70 |
| Material | Aluminum |
| Min Grip | 2.00 |
| Max Grip | 3.30 |
| Hole Diameter | 6.75 |
| Finish | Plain |
| Thread Type | Coarse |