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🔥 Lock in strength, heat, and precision — your 3D prints deserve the best!
The ZWMSSLL 1/4"-20 Heat Set Threaded Inserts are a premium 30-piece brass set designed for 3D printing and plastic parts. Engineered to withstand temperatures over 300°C, these corrosion-resistant inserts feature precision 45° knurling for superior torque resistance and easy installation with common soldering irons. Compatible with a wide range of thermoplastics, they come individually packaged for quick identification and efficient use, making them an essential upgrade for professional-grade 3D printed assemblies and plastic components.

































| ASIN | B0DFWSRH8V |
| Best Sellers Rank | #5,938 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #8 in Nut Inserts |
| Brand | ZWMSSLL |
| Color | Gold |
| Compatible Groove Diameter | 0.25 inches |
| Customer Reviews | 4.8 4.8 out of 5 stars (220) |
| Exterior Finish | Brass |
| Fastener Type | Insert |
| Finish Types | Unfinished |
| Grade Rating | commercial |
| Inside Thread Size | #4 |
| Item Diameter | 0.25 inches |
| Item Dimensions | 0.31 x 0.31 x 0.24 inches |
| Manufacturer | ZWMSSLL |
| Material Type | Brass |
| Metal Type | Brass |
| Model | ZW-1/4"-20x6x8 |
| Number Of Items | 30 |
| Number of Pieces | 30 |
| Outside Diameter | 7.15 inches |
| Part Number | ZW2409-1/4"-20x6x8 |
| Set Name | 1/4"-20 Heat Set Threaded Inserts (30 Piece Set) |
| Size Name | 1/4"-20x6x8 |
| Thread Class | UNC (Coarse) |
| Thread Coverage | Partially Threaded |
| Thread Size | 1/4"-20 |
| Thread Style | Right Hand |
| Thread Type | Unified National Coarse (Unc) |
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