Thread repair kit - HELICOIL® plus M2.5 - M6 HELICOIL® plus for recovery and repair of a damaged thread. HELICOIL® plus is flexible and can be fitted wherever a screw may be placed. Set supplied with: different lengths and dimensions of HELICOIL® plus threaded inserts, drill bits, HSS manual threads, manual pins, tang breakers. Green colour to check the thread is present after fitting. Thread Pitch No. of threaded inserts M 2.5 x 2.5 0.45 20 M 2.5 x 3.75 0.45 20 M 2.5 x 5.0 0.45 20 M 3 x 3 0.5 20 M 3 x 4.5 0.5 20 M 3 x 6 0.5 20 M 4 x 4 0.7 20 M 4 x 6 0.7 20 M 4 x 8 0.7 20 M 5 x 5 0.8 20 M 5 x 7.5 0.8 20 M 5 x 10 0.8 20 M 6 x 6 1 20 M 6 x 9 1 20 M 6 x 12 1 20