TIME-SERT 51460 M14x1.25x24 Taper Seat Replacement Thread Insert. This is for spark plugs that have more threads than most (considered a long reach). The more common length reach is 3/4" (19mm)...
Includes Free Shipping. This set includes 5 complete tool kits with 20 inserts per kit "10 each of short and long" for a total of 100 inserts. Thread Sizes= M5x0.8, M6x1.0, M8x1.25, M10x1.5, M12x1...