M4×8mm Thread Inserts Brass Heat Insert 50Pcs

The brass threaded inserts M4 × 8.1 × 6.3 mm are long-stroke melt-inserts for M4-thread applications with high demands on pull-out strength and torque absorption. The large installation height of 8.1 mm offers maximum form fit in the printed part and is the preferred choice for mechanically highly stressed connection points. The knurled outer surface anchors itself in the plasticized plastic during melting and reliably resists both pull-out forces and torques.

Recommended Accessories:

• C245 Soldering Iron Melt-in Aid Threaded Inserts Insert M2-M8
• Soldering Iron Melt-in Aid Threaded Inserts Insert M2-M8
• Thread Insert Press Kit with Soldering Iron and Accessories
• Thread Insert Press Kit Pro with Soldering Iron and Accessories

Features:

• Large installation height of 8.1 mm maximizes form fit in the printed part and offers significantly higher pull-out strength than short variants
• Brass material with high thermal conductivity enables fast, even melting into all common FDM thermoplastics
• Knurled outer surface anchors itself positively in the solidifying plastic and reliably resists pull-out and torque loads
• Installation with a commercially available soldering station or melting press - no thread cutting or reworking required
• Compatible with M4 screws (ISO metric), suitable for PLA, PETG, ABS, ASA, PC, and other thermoplastics
• 50 pieces per pack for series applications and mechanically demanding projects

Application Examples:

• Heavily loaded attachment points in 3D printers for motor mounts, linear guides, and profile fasteners
• Mechanical assemblies with frequently loosened and retightened M4 screw connections
• Industrial prototypes and small series parts with high demands on connection strength
• Robotics and CNC projects with M4 fasteners under vibration load

Technical Data:

• Manufacturer SKU: M4x8.1x6.3 - 50 pcs
• Thread size: M4
• Height: 8.1 mm
• Outside diameter: 6.3 mm
• Material: Brass (nickel-plated)
• Installation method: Melting (soldering iron / press) or ultrasound
• Recommended melting temperature: Printing temperature + 10–20 °C
• Recommended drilling diameter: 5.4 mm
• Recommended drilling depth: Min. 8.5 mm
• Compatible screws: M4 ISO metric
• Compatible materials: PLA, PETG, ABS, ASA, PC, and other thermoplastics
• Content: 50 pieces
• Package dimensions: 133 × 110 × 23 mm
• Gross weight: 30 g

Scope of Delivery:

• 50× M4 × 8 mm Threaded Inserts Brass Heat Insert