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Carbon Steel Flat Head Insert Rivet Nut Blind Semi-Hex Rivnut Nutsert M3–M12
Carbon Steel Flat Head Insert Rivet Nut Blind Semi-Hex Rivnut Nutsert M3–M12
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$10.82 USD
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$10.82 USD
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Carbon Steel Flat Head Insert Rivet Nut — Blind Semi-Hex Rivnut Nutsert M3–M12
Carbon steel flat head blind rivet nuts (rivnuts / nutserts) are the economical choice for creating permanent threaded inserts in thin sheet metal, steel panels, and aluminium enclosures where stainless steel is not required. The semi-hex body provides anti-rotation performance, and the flat head sits flush with the panel surface for a clean, low-profile assembly. Suitable for indoor and dry environment applications.
Key Specifications
| Parameter | Value |
|---|---|
| Material | Carbon Steel (zinc-plated) |
| Head Style | Flat head (countersunk / flush) |
| Body Style | Semi-hex (anti-rotation) |
| Thread Type | Metric (M3, M4, M5, M6, M8, M10, M12) |
| Installation | Blind (one-side, rivet nut tool required) |
| Min. Sheet Thickness | 0.5mm (M3) — 1.0mm (M12) |
| Standard | DIN 7338 / ISO 15977 |
Why Choose Carbon Steel Rivet Nuts?
- Economical — carbon steel construction provides cost-effective threaded inserts for high-volume sheet metal fabrication and indoor applications
- Flat head (flush) — sits flush with panel surface; no protruding collar; clean, low-profile assembly
- Semi-hex body — anti-rotation geometry prevents spinning during bolt installation
- Blind installation — installs from one side only; no rear access required
- M3–M12 range — covers electronics (M3–M6) through structural sheet metal assembly (M8–M12)
Typical Applications
- Steel sheet metal enclosure and cabinet threaded insert (indoor, dry environments)
- Automotive body panel and chassis threaded insert (M6–M12)
- PC case and server chassis sheet metal fastening (M3–M6)
- HVAC ductwork and steel panel assembly (M6–M10)
- Industrial machinery steel frame threaded insert (M8–M12)
- Furniture and shelving steel frame assembly (M6–M10)
Compatible With
- Standard rivet nut tools / rivnut guns (M3–M12 mandrel sets)
- Sheet materials: mild steel, aluminium, stainless steel (min. 0.5mm)
- Mating bolts: ISO 4762 hex socket cap screws, DIN 933 hex bolts M3–M12
- Note: for outdoor, marine, or humid environments, use 304 or 316 stainless steel rivet nuts instead
Package Contents
- Carbon steel flat head rivet nuts in selected size and quantity (per variant)
- Note: rivet nut installation tool sold separately
Frequently Asked Questions
- Q: When should I choose carbon steel rivet nuts over stainless steel?
- A: Choose carbon steel rivet nuts for indoor, dry environments where cost is a priority and corrosion resistance is not critical — such as PC cases, indoor control cabinets, and dry industrial machinery. Choose 304 or 316 stainless steel for outdoor, marine, humid, or food processing environments.
- Q: Are carbon steel rivet nuts zinc-plated?
- A: Yes. Carbon steel rivet nuts are zinc-plated (electroplated) to provide basic corrosion protection for indoor use. The zinc plating is not suitable for outdoor, marine, or high-humidity environments where stainless steel should be used instead.
- Q: What is the installation process for rivet nuts?
- A: 1) Drill a hole to the correct diameter for the rivet nut size. 2) Insert the rivet nut into the hole. 3) Use a rivet nut tool (rivnut gun) with the correct mandrel to pull the body and collapse the back of the nut, creating a flange that clamps the panel. 4) Remove the tool — the threaded insert is now permanently installed.
