40mm shank aftermarket ET lug bolts for 15mm wheel spacers
12-1.5 thread pitch, 17mm wrench recommended
2002-2017 Z4 Roadster
take one of your bolts and measure it, add 15mm, good to go
follow your stock torque specs
cut the extended part if you bought it as OEM ones by mistake
safely mount your rims with wheel spacers to avoid a wheel flying off
special anti-rusting multi-layers, not easy rusting even the first black layer striped off!
12months warranty, free return or exchange if not helpful, free replacement if missing parts and no extra fee needed!