600-Piece Colored Zinc Rivet Nut Set – Metric & Imperial
Mechanics, fabricators, and serious DIYers know the frustration: you're mid-job, you need a threaded insert for thin sheet metal, and you're digging through a pile of identical-looking fasteners trying to find the right size. Whether you're working on automotive panels, HVAC ductwork, or custom enclosures, misidentifying a rivet nut size costs time and can strip threads in material you can't easily replace.
This 600-piece colored zinc rivet nut assortment solves that problem with a color-coded system that lets you identify sizes at a glance. The set covers both metric (generally M3–M10) and imperial (generally #8-32 through 3/8-16) thread sizes, giving you the range to handle mixed-standard projects without switching kits. Each rivet nut is zinc-plated for corrosion resistance and manufactured to standard thread tolerances for reliable bolt engagement. Sizes are available across multiple thread designations — see variant options for the exact count per size.
⚠️ Please Note: This kit includes rivet nuts only. Installation tools (rivet nut tool / nutsert tool) are NOT included and must be purchased separately.
This set is well-suited for automotive body panel repair and restoration, HVAC and sheet metal fabrication requiring blind-side thread inserts, and electronics or equipment enclosure assembly where access is limited to one side of the material. The metric and imperial rivet nut assortment covers the thread sizes most commonly encountered in North American workshops and garages.
| Total Piece Count | 600 pieces |
|---|---|
| Contents | Rivet nuts only — installation tools not included |
| Thread Standards | Metric (ISO 68-1) and Imperial UNC/UNF (ASME B1.1) |
| Metric Size Range | Generally M3–M10 (see variant options for exact breakdown) |
| Imperial Size Range | Generally #8-32 through 3/8-16 (see variant options for exact breakdown) |
| Material | Zinc-plated steel |
| Head Style | Flat head (flanged) — see variant options to confirm |
| Body Style | Knurled body for anti-rotation in soft materials |
| Grip Range | Varies by size — contact us to confirm per size |
| Installation Tool Required | Yes — standard rivet nut tool (manual or pneumatic), sold separately |
| Corrosion Resistance | Moderate — suitable for indoor and semi-protected environments |
| Color Coding | Yes — each size family is assigned a distinct color |
No. This set contains rivet nuts only. A rivet nut tool (also called a nutsert tool or rivnut tool) is required for installation but is not included in this kit. Manual and pneumatic rivet nut tools are widely available and sold separately. Make sure your tool's mandrel is compatible with the thread sizes you plan to install.
Match the rivet nut thread size to your bolt or screw. For example, if you're using an M5 bolt, select an M5 rivet nut. For imperial fasteners, match the thread designation (e.g., 10-24 or 1/4-20). Grip range — the thickness of the material being fastened — is equally important; generally, measure your sheet metal thickness and choose a rivet nut whose grip range covers that value. As a quick reference: 1/4" ≈ 6.35mm, 3/8" ≈ 9.5mm.
This assortment typically covers a range of common metric sizes (generally M3 through M10) and imperial sizes (generally #8-32 through 3/8-16). See the variant options or contact us for the exact size breakdown and piece count per color/size.
The zinc plating provides moderate corrosion resistance, making these rivet nuts suitable for indoor and semi-protected outdoor applications. For prolonged direct exposure to rain, saltwater, or harsh chemicals, stainless steel rivet nuts are generally recommended. If you're unsure, contact us to discuss the right material for your environment.
Any standard rivet nut tool (manual or pneumatic) with the appropriate mandrel for the thread size you're installing will work. Mandrel sets are typically sold with the tool or available as accessories. Check that your tool supports both metric and imperial mandrels if you plan to use both thread standards from this set. Tools are not included in this kit and must be purchased separately.
Pull-out and torque-out strength vary by thread size and base material thickness. Larger sizes (e.g., M8, M10, 5/16-18) generally offer significantly higher load capacity than smaller ones (e.g., M3, #8-32). For structural or safety-critical applications, contact us to confirm load specifications before ordering.
Rivet nuts are designed for thin-walled materials where you can only access one side — typically sheet metal, aluminum panels, steel tubing, and rigid plastics. They are commonly used in automotive bodywork, HVAC ductwork, electronics enclosures, and furniture assembly. In most cases, the material thickness should fall within the rivet nut's specified grip range for a secure installation.
Each color corresponds to a specific thread size or size family, making it fast and easy to identify the right fastener without measuring every piece. The color-coded system is especially useful when working with both metric and imperial sizes in the same kit, reducing sorting time and the risk of grabbing the wrong size mid-job.
Made with care and unconditionally loved by our customers, this signature bestseller exceeds all expectations.
Made with care and unconditionally loved by our customers, this signature bestseller exceeds all expectations.
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