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🔧 Elevate your build game with precision-fit power!
The TOPINSTOCK Pre-Assembly Square Nuts Flat M5 T Nut pack of 100 offers industrial-grade zinc-plated carbon steel construction with M5-0.8 threading, designed specifically for 20x20mm aluminum extrusion profiles. Engineered for easy insertion and compatibility with 20 series T-slot systems, these nuts provide reliable, corrosion-resistant fastening ideal for professional-grade assembly and accessory mounting.
| ASIN | B01HKMF2EE |
| Best Sellers Rank | #90,999 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #111 in T-Nuts |
| Brand | TOPINSTOCK |
| Color | Silver |
| Compatible Groove Diameter | 15.88 Millimeters |
| Customer Reviews | 4.7 4.7 out of 5 stars (79) |
| Drive Style | Slotted, Square |
| Exterior Finish | Zinc |
| Fastener Type | Square |
| Finish Types | Zinc plated |
| Grade Rating | industrial |
| Inside Thread Size | M5 |
| Item Diameter | 5 Millimeters |
| Item Dimensions | 5.12 x 4.33 x 0.39 inches |
| Item Weight | 160 Grams |
| Manufacturer | TOPINSTOCK |
| Material Type | Carbon Steel |
| Metal Type | Carbon Steel |
| Model | FT16031-M5 |
| Number of Pieces | 100 |
| Part Number | FT16031-M5 |
| Screw Head Style | Flat |
| Size Name | M5 Flat T-Nut |
| Thread Size | M 5 |
L**G
Would buy again, bought few so it should last for while
It worked perfect for what I needed it for
M**.
Perfect Fit for MLOK Screws
I ran into an issue with the factory M-LOK nuts being too thick to fit properly on my handguard, which meant I couldn’t mount any accessories because the nuts would hit the barrel. Another member mentioned he had the same problem and recommended the TOPINSTOCK T-Nuts since they have the same thread pitch as standard M-LOK screws. I decided to give them a shot, and they worked perfectly, giving me the clearance I needed to attach multiple accessories. The pack comes with plenty of extras, so they’re great to have on hand for future builds. If you're dealing with the same issue, these are a solid fix.
S**E
Great for size reduction in M6 slots
I used these in UniTrack slots on a Permobil power chair that ordinarily uses M6 nuts and screws. However some of my accessories only had M5 or 10-32 holes. In most cases an untapped through hole drilled for 10-32 fasteners will work perfectly well with M5 hardware.
R**K
Good quality, work fine
I'm never sure when I order something like this through Amazon, how good its going to be. Finish and threading are good. Very satisfied.
Z**.
Four Stars
good deal
M**Y
Square insertion nuts
These are really handy on my cnc home build.
I**G
Joined with a 009 o-ring, these t-nuts are the bomb.
Just push a 009 o-ring underneath the nut. It hooks right on the protrusion. Then insert the nut into the extrusion as usual and presto, the nut stays where you push. Fantastic!
C**E
Great item.
I am using these to build a new 3d printer. They work great and I have not run across any defective ones yet
M**W
McMaster Carr sells aluminum extrusion with 5mm slot for some reason, but they dont have many t-nuts to go with it. Unless you 3D print your own T-Nuts these are the only ones I found that fit the 5mm slot.
N**Y
I bought motedis extrusions with a 5 mm slot opening that standard hammer head nuts wouldn't fit. These worked perfectly.
T**H
Excellence value. Fast sipping. Thanks.
G**Y
They were as described.
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