HELI-COIL, M12x1.25 Thread Size, 42.07 mm Thread Lg, Screw Thread Insert STI Tap - 4EYW2|5444-12 - Grainger
POWERCOIL KIT M12X1.25 STI TAP, 10 INSERTS AND 2 APPLICATORS (SPARKPLUG KIT) - Collier & Miller
M12x1.25 Right Hand Weld-In Threaded Bung
M12x1.25 Threaded Inserts, Galvanized Professional High Efficiency Thread Hole Repair Tools High Speed Steel Tap for 14mmx1.25mm Spark Plugs : Amazon.co.uk: Automotive
M12x1.25 Threaded Inserts, M14x1.25 Tap Corrosion Resistant High Efficiency Professional Thread Hole Repair Tools for 14mmx1.25mm Spark Plugs : Amazon.co.uk: Automotive
TIME-SERT Metric Kits ++ thread repair kits and inserts repair stripped threads damaged threads repaired threads threaded inserts for metal thread inserts for metal aluminum inserts threaded inserts for aluminum