1/4"-20x12.7x8 22pcs
Product ID: 662248766
🔥Heat Resistant >300°C
🔩22 Precision Brass Inserts
⚙️1/4-20 UNC Thread Size
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🔧 Upgrade your 3D prints with brass precision that lasts!
This 22-piece set of 1/4-20 heat-set brass threaded inserts offers professional-grade durability and precision for 3D printed and plastic components. Engineered with knurled torque resistance and heat tolerance beyond 300°C, these inserts ensure secure, reusable fastening across a wide range of thermoplastics and industrial applications.
| ASIN | B0D3KW9XW5 |
| Best Sellers Rank | #18,290 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #28 in Nut Inserts |
| Brand | ZWMSSLL |
| Color | UNC Threaded Insert |
| Compatible Groove Diameter | 0.12 Inches |
| Customer Reviews | 4.6 out of 5 stars 130 Reviews |
| Drive Style | Spline |
| Exterior Finish | Brass |
| Fastener Type | Insert |
| Grade Rating | industrial |
| Inside Thread Size | 1/4 inch |
| Item Diameter | 0.25 Inches |
| Item Dimensions | 0.31 x 0.31 x 12.7 inches |
| Item Weight | 0.02 Ounces |
| Manufacturer | ZWMSSLL |
| Material | Brass |
| Material Type | Brass |
| Metal Type | Brass |
| Model | 1/4-20x12.7x8 Threaded Inserts |
| Number Of Items | 22 |
| Number of Pieces | 22 |
| Outside Diameter | 7.15 Inches |
| Part Number | 425Pcs Metric Knurled Nuts Kit |
| Screw Head Style | Square |
| Size Name | 1/4''-20 (22pcs) |
| Thread Class | Class 2A |
| Thread Coverage | Fully Threaded |
| Thread Size | 1/4"-20 |
| Thread Style | Right Hand |
| Thread Type | Unified National Coarse (Unc) |
E**R
Useful set of inserts
Excellent set of inserts. They work well, easy to install.
A**A
Good
Work as intended. Inserted into 3D printed PETG, 7.4mm hole seemed to do the trick.
B**3
They just work!
Not only do they work great, but they’re fun to install! As advertised, they melt into your plastic part and create a strong bond. Such a great little device!
J**E
Great quality inserts
Great kit, it comes in a handy little plastic box. Inserts are good quality without burs and good finish threads.
W**T
Lousy container that rendered the contents unusable.
I needed inserts for M1.4 screws. I only needed a few, but given the option of having a range of options for the future, this looked great. (Honestly, I've never seen a M1.7 screw that I know of, but I have screws of the other sizes included.) I was psyched to receive them, and immediately opened the package in anticipation of placing a couple of them in a project. What I got when I opened their container is what you see in the photo. Unusable. Ridiculous. We're supposed to look through a jumble of pieces looking for the size we need, all for the saving of a piece of foam or (as I did) a folded piece of paper to seal the sections? They otherwise looked to be of very high quality. It hurt to return them. I replaced them with a different brand that came perfectly — as reasonable to assume — sorted.
B**E
Worth every penny!
These are my favorite inserts for 3d printed things! 4.5mm hole seems to work well for them.
S**Y
Fantastic
Absolutely love these things. For 3D printing they’re just awesome! Typically if the skinny part of the insert fits get a soldering iron on low heat till it sinks in. Job done. Allows you to get durable metal threads in plastic, and they definitely hold good.
T**R
Good quality, terrible packaging
Has everything I needed, but holy cow is the packaging inadequate, and now I have to sort 1200 M1 inserts from M1.2, M1.4 etc, all by hand. Please learn from other sellers that put tiny parts in these trays - use little baggies or a thin foam across the top so parts don't jump between trays.
A**O
Gran calidad para emplear en sus proyectos.
Muy buen material, se atornilla perfectamente y la transferencia de calor es rápida. Me gustaron mucho.
I**O
Poor quality plastic organizer / storage
1 - poor packaging, lid is not flashing resulting to parts not staying in place and find its way to be mix with other size, very frustrating, had to spend hours to sort it out, but smaller sizes are pain in the eyes to sort. 2 - package was delivered in a wrong address
Trustpilot
3 weeks ago
1 week ago