Threaded Inserts (Knurled Brass Embedment Heat Inserts)

Price range: $0.25 through $0.50

Achieve strong, reusable threads in 3D printed components with Knurled Brass Threaded Inserts—ideal for heat embedment in PLA, PETG, ABS, and nylon.

Precision-machined with deep knurling for maximum grip, these inserts melt cleanly into printed holes using a soldering iron or heat press, forming secure, wear-resistant threads for bolts and fasteners. Made from corrosion-resistant brass, they’re perfect for enclosures, mounts, and mechanical assemblies where durability and repeatability matter. Available in M2.5 to M6 sizes for metric builds.

Description

Brass inserts are sold individually

Type Outer Diametre (OD) Length
M2.5 Short 5mm 6mm
M3 Short 5mm 6mm
M3 Standard 5mm 8mm
M3 Long 5mm 10mm
M4 Short 6mm 6mm
M4 Standard 6mm 8mm
M4 Long 6mm 10mm
M5 Short 7mm 6mm
M5 Standard 7mm 8mm
M5 Long 7mm 10mm
M6 Standard 8mm 10mm
M6 Long 8mm 12mm

 

Additional information

Weight 0.1 kg
Dimensions 2 × 2 × 2 cm
Size

M2.5 Short, M3 Short, M3 Standard, M3 Long, M4 Short, M4 Standard, M4 Long, M5 Short, M5 Standard, M5 Long, M6 Standard, M6 Long

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