Lug Bolt 12mmx1.50 Conical Seat 50mm Shank
Fitment and specs
- Thread size: 12mm x 1.50
- Seat type: conical
- Shank length: 50mm; overall length: 77mm
- Hex size: 17mm
- Fits BMW, Volkswagen, and Audi applications
- Priced and sold per piece
Start every bolt by hand so a crossed thread never gets torqued in, snug the set in a star pattern, then set final torque to your vehicle's spec. Our torque reference chart is a quick place to check it, and plan a re-torque after 50 to 100 miles.
Common questions
What is the difference between shank length and overall length?
Shank length is measured from under the seat to the end of the threads, 50mm here, while overall length includes the head, 77mm on this bolt. Match shank length to your originals so you keep full thread engagement in the hub.
Can I use these in wheels made for ball seat bolts?
No. A conical bolt cannot seat properly in a rounded ball seat hole, and the wheel will not clamp evenly. Check the lug holes on your wheels first; a straight taper means conical, which is what these are.