Black Lug Bolt 14mm x 1.25 Conical Seat 33mm Shank
Fitment and specs
- Thread size: 14mm x 1.25
- Seat type: conical (tapered)
- Shank length: 33mm, total length 55mm
- Hex size: 17mm, black finish
- Grade 10.9 with enhanced torque tension
- Fits many BMW and Mini Cooper applications, sold per piece
Hand-start every bolt to protect the hub threads, tighten in a star pattern, and finish at your vehicle's spec. Our torque reference chart is a good starting point, and re-torquing after 50 to 100 miles keeps everything seated.
Common questions
What does Grade 10.9 mean?
It is a metric fastener strength class. A higher class is rated for higher clamping loads, which matters on wheel hardware that lives under repeated torque cycles.
Can I run these in wheels made for ball seat hardware?
No. A conical seat will not center or clamp correctly in a ball seat wheel, and the seats are not interchangeable. Confirm your wheels take a conical (tapered) seat before ordering, especially if you are keeping factory wheels.