Black Lug Bolt 14mm x 1.50 Conical Seat 40mm Shank

Fitment and specs

• Thread size: 14mm x 1.50
• Seat type: conical seat
• Shank length: 40mm
• Black finish

Start every bolt by hand to protect the 14x1.50 threads, then tighten in a star pattern with a snug, clean six-point socket so the black finish stays unmarked. Torque to the spec in our torque reference chart and re-torque after 50 to 100 miles.

Common questions

How do I know these match my current lug bolts?
Check three things against a bolt you remove from the car: thread size 14x1.50, a conical (tapered) seat, and a 40mm shank measured from under the seat to the tip. If all three line up, the bolt fits.

Are conical and ball seat bolts interchangeable?
No. The seat carries the clamping load and centers the wheel, so a conical bolt will not seat flush in a ball seat wheel or hold torque correctly. Always match the seat shape machined into your wheel.