M2.5×4mm Threaded Inserts Brass Heat Insert 100Pcs

The brass threaded inserts M2.5 × 4 × 4.6 mm are precision-manufactured heat set nuts for use in 3D-printed parts made of PLA, PETG, ABS, ASA, and other thermoplastics. The outer diameter of 4.6 mm and the height of 4 mm make these inserts the standard choice for M2.5 thread applications - particularly widespread in Raspberry Pi projects and SBC mounts. The knurled outer surface anchors itself when melting into the plasticized plastic and reliably resists both pull-out forces and torques.

Recommended Accessories:

• C245 Soldering Iron Heat Set Aid Threaded Inserts Insert M2-M8
• Soldering Iron Heat Set Aid Threaded Inserts Insert M2-M8
• Threaded Insert Press Kit with Soldering Iron and Accessories
• Threaded Insert Press Kit Pro with Soldering Iron and Accessories

Features:

• Brass material with high thermal conductivity allows for fast, even embedding in all common FDM thermoplastics
• Knurled outer surface anchors itself form-fit in solidifying plastic and reliably withstands pull-out and torque loads
• Standard size M2.5 × 4 × 4.6 mm (internal thread × height × outer diameter) – standard size for Raspberry Pi and SBC mounting projects
• Assembly with commercial soldering station or heat press - no need for thread cutting or post-processing
• Compatible with M2.5 screws (ISO metric), suitable for PLA, PETG, ABS, ASA, PC, and other thermoplastics
• 100 pieces per pack for series applications, prototyping, and repair work

Application Examples:

• Raspberry Pi cases and SBC mounts with M2.5 attachment points for permanent, robust screw connections
• 3D-printed electronic enclosures and project boxes with M2.5 screws for circuit boards and covers
• Voron and CoreXY printer projects with M2.5 attachment points
• Repair of plastic parts with damaged M2.5 threads through subsequent embedding

Technical Data:

• Manufacturer SKU: M2.5x4x4.6 - 100 pcs
• Thread size: M2.5
• Height: 4.0 mm
• Outer diameter: 4.6 mm
• Material: Brass (nickel-plated)
• Installation method: Embedding (soldering iron / press) or ultrasonic
• Recommended embedding temperature: Printing temperature + 10–20 °C
• Recommended drill diameter: 3.9 mm
• Recommended drill depth: Min. 4.5 mm
• Compatible screws: M2.5 ISO Metric
• Compatible materials: PLA, PETG, ABS, ASA, PC and other thermoplastics
• Contents: 100 pieces
• Packaging dimensions: 133 × 110 × 23 mm
• Gross weight: 30 g

Scope of Delivery:

• 100× M2.5 × 4 mm Threaded Inserts Brass Heat Insert