Amazon.com: Spark Plug Thread Repair Tool Set, M10 x 1.0 Bolt and M12 x 1.0 Tap Auto Accessories Hardware Kit For Repairing Spark Plug Thread M10x1.0 : Automotive
XINGYHENG 120pcs M3 M4 M 5 M6 M8 M10 M12 Wire Thread Inserts Steel Sheath Helicoil Type Screw Repair Sleeve Assortment Kit with Plastic Box: Amazon.com: Industrial & Scientific
MECCANIXITY Thread Reducing Nuts Insert M12 x 1mm Male to M10 x 1mm Fine Thread Female Adapters 15mm Long Pipe Fitting Conversion Sleeve Reducer, Pack of 5: Amazon.com: Industrial & Scientific
4Pcs Double End Screw Bolts 304 Stainless Steel M10*1.5 to M12*1.75 Threaded Stud Fasteners (M10 to M12): Amazon.com: Industrial & Scientific