The product utilizes EU standard thread. You will find adapters HERE.

Very strong and very smooth material, if used correctly won't scratch the paint
For fine detailing finishes
Made of Very High-Grade Heat Treated Stainless Steel
1" (25.4 mm) long standard 5/16 thread
1/16" ( 1.6 mm ) diameter 
Very precise knockdown tip
Great for aluminum and steel panels
Fits most knockdowns
FOR PROFESSIONALS ONLY
For tapping use only  very light wood or composite paddle - never  steel or aluminum  hammer - will damage the paint