Brand New Stud Conversion Kit with Lug Nuts & Spikes from Sickspeed Set of 20 steel studs and a set of 20 - 12x1.5 lug nuts & spikes. Converts factory lug bolts 12x1.25 to wheel studs/lug nuts 12x1.5 Studs are 2 1/2" (64mm) length overall 1.85"(47mm shank length) . Lugs are 60mm long and 20mm wide, 60 degree conical style. Spikes add 30mm to overall length of 90mm. Installs with a 19mm socket (NOT INCLUDED). Don't forget to check out our other listings for parts and accessories to suit your ride. We are always expanding so keep an eye out for more supreme quality products from Sickspeed. NOTE: Listing is for 20 + 20 pieces ONLY. Check our OTHER listings for additional quantities. NOTE: Vehicle list is for REFERENCE ONLY, use the guide above to check fitment with your rims. To avoid damaging your product you MUST use a torque wrench. Under NO circumstances should this be installed with an impact driver. To avoid damaging your product, please use a 19MM 6-sided socket (Do NOT use a 12-sided socket). Purchase includes a die-cut vinyl decal: Check out the manufacturer's website for more info and pics.