Lug bolts are a detail most people ignore until there's a problem — and that's the wrong time to think about thread engagement and seat geometry. Dinan's M14x1.25 cone seat lug bolts are direct replacements for factory BMW hardware, spec'd to match the ball seat taper of BMW alloy wheels and sized at 35mm shank for correct engagement on stock hubs or thin (5-10mm) spacer setups.

The cone seat radius matches BMW's factory specification, ensuring the wheel seats concentrically without pulling off-center under torque. Black oxide finish provides corrosion resistance against the salt, moisture, and brake dust that attack exposed wheel hardware in the wheel well. Sold as a set of 10 — covering one corner with spares, or a targeted refresh across two corners of a 5-bolt BMW.

Thread: M14x1.25
Seat Type: Cone (ball seat)
Shank Length: 35mm
Finish: Black
Includes: 10 lug bolts
Note: Verify thread engagement is at minimum 1.0x bolt diameter (14mm) after installation with any wheel or spacer combination.
Part Number: D220-0004
Prop 65: Yes
Brand: Dinan