When standard nuts won't hold in thin or single-access materials, rivet nuts deliver the threaded connection you need — no welding, no backing plate. Whether you're working on automotive panels, sheet metal enclosures, or fiberglass components, this 860-piece assortment gives you the right size every time.
The kit covers both Metric (M3–M12) and SAE UNC sizes (6#-32, 8#-32, 10#-24, 1/4"-20, 5/16"-18, 3/8"-16, 1/2"-13), available in 304 stainless steel or color-galvanized carbon steel. Each rivet nut features a flat head and half-hex body with a large flange, work-hardened for high-strength load-bearing in materials from 0.5–6 mm thick.
From heavy truck maintenance and industrial fabrication to weekend DIY builds with plastic or fiberglass, this assortment covers the full range of common fastening scenarios — all organized in a heavy-duty compartmentalized carrying case.
✅ Compatible with materials 0.5–6 mm thick — including steel, aluminum, plastic, and fiberglass panels.
Key Features
🔩 860-Piece Assortment: Covers Metric M3–M12 and SAE UNC 6#-32 through 1/2"-13 — one kit for virtually every common rivet nut application.
🛡️ Dual Material Options: 304 stainless steel for corrosion-resistant performance in marine and chemical environments; color-galvanized carbon steel for cost-effective general use.
🔧 Flat Head, Half-Hex Body: Large flange distributes load evenly; hex body prevents rotation during installation for a secure, permanent thread.
💪 Work-Hardened Surfaces: Each rivet nut is heat-treated for high-strength load-bearing, maintaining thread integrity under vibration and torque.
📐 Wide Material Thickness Range: Installs in single-sided access points across 0.5–6 mm material thickness — ideal for thin sheet metal and composite panels.
🎬 See It in Action: Watch the video above to see how rivet nuts replace welding for fast, clean threaded connections.
Who Is This For
🚗 Automotive & Truck Technicians
Add threaded inserts to body panels, brackets, and trim pieces where only one side is accessible — no welding required.
🏭 Sheet Metal Fabricators
Create strong, reusable threaded connections in enclosures, frames, and industrial equipment without compromising thin material.
🛥️ Marine & Outdoor Equipment
304 stainless steel rivet nuts resist salt spray and moisture — ideal for boat fittings, trailers, and outdoor structures.
🔨 DIY Builders & Home Workshop
Tackle fiberglass, plastic, and aluminum projects with confidence — the full size range means you're covered for repairs and custom builds alike.
Work-hardened; stainless or zinc-plated (carbon steel)
Storage
Heavy-duty compartmentalized carrying case
Weight
Approx. 3.3–3.4 kg (varies by material)
Frequently Asked Questions
What sizes are included in this rivet nut kit?
The kit includes Metric sizes M3 through M12 and SAE UNC sizes from 6#-32 up to 1/2"-13, totaling 860 pieces across both standards.
What is the difference between the 304 stainless steel and carbon steel options?
304 stainless steel offers superior corrosion resistance, making it suitable for marine, chemical, and outdoor environments. Color-galvanized carbon steel provides a cost-effective solution for general indoor and construction applications.
What material thickness can these rivet nuts be installed in?
These rivet nuts are designed for materials typically ranging from 0.5 mm to 6 mm in thickness, covering most sheet metal, aluminum, plastic, and fiberglass applications.
Can these rivet nuts be used in single-sided access applications?
Yes. Rivet nuts are specifically designed for single-sided installation — you only need access to one side of the material, making them ideal for hollow sections, panels, and enclosed structures.
Are these rivet nuts suitable for automotive use?
Yes. Both the metric and SAE sizes cover common automotive fastening needs, and the flat head / half-hex body design provides a secure, vibration-resistant connection in body panels and brackets.
How are the rivet nuts organized in the kit?
All 860 pieces are stored in a heavy-duty carrying case with compartmentalized sections, keeping each size separated for quick identification and access on the job.
Do the stainless steel rivet nuts resist rust?
Yes. 304 stainless steel provides strong resistance to rust and oxidation, making it well-suited for humid, marine, or chemically exposed environments. Carbon steel variants are zinc-plated for general corrosion protection.
Ready to add permanent threaded connections to any panel or structure? Add to Cart and get the right rivet nut size — every time. Backed by a 24-month quality warranty and 24/7 technical support.
Roll over image to zoom inClick on image to zoom
/
860Pcs Rivet Nut Kit M3-M12 & UNC...$83.69
860Pcs Rivet Nut Kit M3-M12 & UNC SAE...
You may also like
Recently viewed
Free shipping
Free worldwide shipping For $89
Satisfied or refunded
We accept returns within 30 days. Please contact us promptly if any items are missing or if there are issues with the shipment; we will arrange for a replacement after verification.
Top-notch support
You can contact us via WhatsApp, website live chat, email, or by leaving a message. Our customer service team is available Monday through Friday to answer any questions you may have.
Secure payments
Your payment information is processed securely. We prioritise your privacy above all else.
Hospice had given us a wheelchair that the caster nut cap was missing. So I replaced it with the 28mm tube cap. It was of good quality, sturdy and fit perfect. shipping was fast too.
Perfect they are really made well and I used them for my car
Perfect they are really made well and I used them for my car. The only thing I had a great for us. It took three weeks to get here. So shipping was slow.
Hi Scott, thank you for your feedback. We're sorry for any inconvenience caused. Please get in touch with us directly, and we'll assist you. Thanks for shopping with HomeDIYer!
