⚙️ Lock in strength and style with every slide-in T-nut!
The 8020 3203 15 Series Slide-in T-Nut is a high-quality, 5/16-18 threaded fastener crafted from durable 1215 alloy steel with a corrosion-resistant black zinc finish. Designed specifically for 1.5" based aluminum extrusions, it delivers precision fit and robust connections ideal for industrial, DIY, and maker applications. Sold in a convenient 25-pack, it’s the essential hardware upgrade for professionals and enthusiasts aiming to build stronger, smarter structures.
| ASIN | B00J39EX66 |
| Best Sellers Rank | #148,177 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #196 in T-Nuts |
| Brand | 80/20 |
| Color | Black |
| Date First Available | March 18, 2014 |
| Exterior Finish | Zinc |
| Fastener Type | T-Slot |
| Finish Type | Black Zinc |
| Inside Thread Size | #18/32-5/16 |
| Item Diameter | 0.63 Inches |
| Item Weight | 8 ounces |
| Item model number | 3203-25 |
| Manufacturer | 80/20 Inc. |
| Material | Alloy Steel |
| Metal Type | Alloy Steel |
| Number of Pieces | 25 |
| Size | 0.625 x 0.243 x 0.7 inches |
| Thread Class | UN |
| Thread Coverage | Partially Threaded |
| Thread Size | 5/16 Inch-18 |
| Thread Style | Unified National |
| Thread Type | Unified National |
T**E
Well made and strong.
These 80/20 retainer nuts are absolute perfect. Making our removable bed system in a DIY project of our Mercedes Van, these are indispensable. They function exactly as you want them to and are super strong. Perfect purchase.
D**N
only ones that fit and are strong.
Pros: Rock solid (so far). Great fit. Threads are consistent. So far the threads are solid and can handle being torqued down on my rtt. Cons: soooooo expensive. I bought The big pack to try and cut some of the cost down.
A**R
Good 80/20 parts
Good 80/20 parts.
C**S
Sturdy but overpriced
Steel fittings that fit 15 and 40 series but with no centering ridge. Relies on the bolt for centering, which I don’t like. Seem strong and well-threaded. Decided to return because they’re over priced for what they are.
F**4
I've had others that were soft metal easily stripped out
Just what they are supposed to be--good quality metal on these, I've had others that were soft metal easily stripped out.
S**E
Pricey
Really good quality, but so overpriced for what they are
M**R
Five Stars
awesome nuts used in extrusions
Trustpilot
2 weeks ago
3 days ago
