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E-Z LOK Threaded Insert for Plastic Flush Brass Thread Inserts M3-0.5-Pack of 20, 1000 Count Total : Amazon.co.uk: DIY & Tools
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ruthex threaded Insert M3 (100 pieces) - RX-M3x5.7- brass threaded sockets - press-fit nut for plastic parts - by heat or ultrasound in 3D printer parts : Amazon.co.uk: DIY & Tools
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