Brass Hot Melt Insert Knurled Nuts – M2 to M6 Threaded Heat Embedment Nuts for 3D Printing

Get flawless, durable threads in 3D-printed parts with these brass hot melt insert knurled nuts. Designed for easy heat embedding into plastic components, they provide strong, long-lasting screw retention for M2–M6 sizes—perfect for your next prototype or production model.

Key Features

• Knurled body for strong mechanical grip

• Heat-insertion compatible with most 3D printer plastics (e.g. PLA, ABS, PETG)

• Sizes include: M2, M2.5, M3, M4, M5, M6

• Double twill threading for stable fastening

• Precision-made from corrosion-resistant brass

Why Choose These Insert Nuts
Unlike standard fasteners, these hot melt inserts create professional-level internal threads that won’t loosen or strip under pressure. They're ideal for functional parts, enclosures, and modular designs.

Perfect For

• 3D printing enthusiasts & makers

• Engineers & prototypers

• Repairing worn threads in plastic parts

• Custom enclosures & mounts

Specs

• Material: High-quality brass

• Insertion method: Heat (soldering iron recommended)

• Compatibility: Most thermoplastics

• Quantity: Varies by listing (typically 50–100 pcs/set)

Bring Your Prints to Life—with Strength Inside.
Engineered for creators who demand function and form, these threaded inserts are essential for professional-quality 3D printing builds.