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🔧 Upgrade your 3D prints with brass-backed strength and precision!
HANGLIFE Heat-Set Threaded Inserts are precision-engineered M4 brass knurled nuts designed for seamless heat or ultrasound embedding into 3D printed and plastic parts. Offering superior corrosion resistance, thermal conductivity, and a secure spiral grip, this 100-piece set ensures durable, high-torque fastening across a wide range of thermoplastics including PLA, ABS, and PETG. Ideal for professionals seeking reliable, scalable solutions to elevate their 3D printing and plastic assembly projects.






































| ASIN | B0CS6XGMFD |
| Best Sellers Rank | #3,813 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #5 in Nut Inserts |
| Brand | Hanglife |
| Color | M4 x D6 x L6(100pcs) |
| Compatible Groove Diameter | 4 millimeters |
| Customer Reviews | 4.8 4.8 out of 5 stars (1,239) |
| Drive Style | Spline |
| Exterior Finish | Brass |
| Fastener Type | Insert |
| Finish Types | Unfinished |
| Inside Thread Size | M4 |
| Item Diameter | 4 millimeters |
| Item Dimensions | 0.12 x 0.12 x 0.12 inches |
| Manufacturer | Hanglife Group |
| Material Type | Brass |
| Metal Type | Brass |
| Number Of Items | 1 |
| Number of Pieces | 100 |
| Outside Diameter | 6 millimeters |
| Part Number | HLTI-SET-001 |
| Screw Head Style | Square |
| Size Name | Onesize |
| Thread Class | UNC |
| Thread Coverage | Fully Threaded |
| Thread Size | M4 |
| Thread Style | Right Hand |
| Thread Type | Unified National Coarse (Unc) |
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