Bigger threads mean more torque, and more torque means your M5 or M6 brass insert is fighting the plastic every time you tighten it. If it's already walked out of a printed housing, you don't need another attempt—you need a proper bond. These Jaycar heat press tips do exactly that. Heat the tip, seat it in the threaded insert, and the thermoplastic softens and wraps around the shaft. The result is a thread that holds under real load without pulling free. M5 tip: 17.5 mm. M6 tip: 15.5 mm. Shaft OD 6.5 mm, ID 4.75 mm × 25 mm deep, shaft to screw base 28 mm. Assembled length: 44.5 mm (M5) or 40.5 mm (M6). Sorted
