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🔧 Secure your 3D prints with precision – because every detail counts!
The ruthex Threaded Insert M3 (100 pcs) is a premium brass knurled press-fit nut designed for plastic parts, especially 3D printed enclosures. Compatible with heat or ultrasonic embedding, it offers high torque resistance and corrosion durability, making it the go-to choice for millennial pros seeking reliable, long-lasting fastening solutions in their creative projects.


















| ASIN | B08BCRZZS3 |
| Best Sellers Rank | 140,041 in DIY & Tools ( See Top 100 in DIY & Tools ) 167 in Nut Inserts |
| Brand Name | ruthex |
| Colour | yellow |
| Compatible Groove Diameter | 3 Millimeters |
| Country Of Origin | China |
| Customer Reviews | 4.9 out of 5 stars 1,524 Reviews |
| Drive Style | Spline |
| Exterior Finish | Brass |
| Exterior finish | Brass |
| Fastener Type | Knurled |
| Fastener type | Knurled |
| Finish Types | Brass |
| Grade Rating | Industrial |
| Inside Thread Size | M3 |
| Item Diameter | 3 Millimetres |
| Item Dimensions | 12 x 9 x 1 centimetres |
| Manufacturer | LUTDTRS |
| Manufacturer Part Number | GE-M3x57-001 |
| Material | Brass |
| Material Type | Brass |
| Metal | Brass |
| Metal type | Brass |
| Model Number | GE-M3x57-001 |
| Number Of Items | 100 |
| Number of Pieces | 100 |
| Screw Head Style | Flat |
| Set Name | ruthex Threaded Insert M3 (100 pieces) Set |
| Size | M3x5.7 (100 pcs) |
| Thread Class | Class 2A |
| Thread Coverage | Fully Threaded |
| Thread Size | M 3 |
| Thread Style | Right Hand |
| Thread Type | ISO Metric |
| Thread size | M 3 |
| Unit Count | 100.0 count |
S**E
Great for 3D printed enclosures
I use these in every single 3D printed enclosure I design and they are perfect. Just finished off a bag of M3's and I've ordered some M4 and M5
D**S
Inserts, for inserting...
Perfectly as described.
M**N
Never used these before absolutely great easy and works very well
liked every thing about them, first time used them no issues easy worked well and will definitely now use them.
J**N
Good product
Good product
J**N
Parfait
Parfait
A**N
İyi kalite
İyi ürün
R**O
Ottimo prodotto!! ma...
Perfetto, fa il suo lavoro e regge molto bene, unica cosa mi aspettavo di trovare all'interno la boccolina maschio per aiutare nella posa in stampa 3d, quello sarebbe stato un Plus molto accettato.
P**N
Super
Kanon, håller i plasten när man värmt dem på plats, så helt kanon
Trustpilot
2 weeks ago
1 week ago