Manufactured by ARP, part number 100-7712.

Application Guide:

Knurl Diameter0.485?
UHL2.850?
Knurl Length0.275?
Nose Length0.350?
Diameter - PitchM12 x 1.5
Wheel Stud Hole Size - Cast Iron/Steel Hub0.469? - 0.479?
Cast Iron/Steel Hub Drill Bit Size (actual dim.)12mm (0.472?)
Wheel Stud Hole Size - Aluminum Hub0.469? - 0.475?
Aluminum Hub Drill Bit Size (actual dim.)12mm (0.472?)

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