iplusmile 100Pcs M3 Threaded Insert for 3D Printing, Brass Heat Set Inserts 5.7 x 4.6mm, Knurled Nuts for Injection Molding & Plastic Parts, Compatible with Prusa, PLA PETG ABS

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PRECISE DIMENSIONS FOR PERFECT FIT: Engineered with high-precision tolerances, these M3 heat-set threaded insert feature a 5.7mm outer diameter and 4.6mm length. Designed specifically for 3D printing, they fit perfectly into standardized mounting holes without the need for messy countersinking or oversized boss designs SUPERIOR HEAT CONDUCTIVITY & FLOW: These threaded inserts for plastic crafted from sturdy brass with excellent thermal conductivity. These m3 heat set inserts nuts heat up quickly and evenly, allowing for a smooth, seamless press-fit into your 3D printed parts. Supports high-temperature installation up to 300°C (572°F) without deforming or clogging threads MAXIMUM TORQUE & PULL-OUT RESISTANCE: M3 threaded insert featuring a "Eight-Figure" symmetrical knurled design. This deep, multi-directional knurling allows the melted plastic to flow into the grooves, creating an incredibly strong mechanical bond that resists high torque and prevents pull-out, even in heavy-duty applications WIDE COMPATIBILITY & VERSATILITY: The ideal solution for adding durable metal threads to thermoplastic parts. M3 heat inserts compatible with PLA, PETG, ABS, ASA, Nylon, and more. Essential for 3D printer builds, industrial enclosures, automotive prototypes, and custom DIY robotics 100PCS BULK PACK: Get a professional grade supply for your large-scale manufacturing or continuous hobbyist projects. Each pack contains 100 premium M3 threaded inserts, ensuring you always have reliable hardware on hand for your next innovation. (Recommended hole size: approx. 4.0mm - 4.2mm depending on material)