Key Hex: 19mm 21mm Heat Treated For OEM BMW Mini Factory or Aftermarket Wheels Overall Length: 2.16" Shank Length/Height: 1.1" 28mm Thread: 14x1.25mm 10.9 Grade Steel Through-Hardened For Maximum Durability and Tensile Strength. Meets or Exceeds OEM Factory Standards Please note: due to multiple wheel designs available, we recommend checking your lug nut wheel design and specs prior to purchase. This listing is for a set of 20 Veritek Performance premium replacement lug nuts bolts or wheel locks. Heat treated cold forged 10.9 grade steel material. Through hardened for maximum durability and tensile Strength. Meets or exceeds OEM factory standards. Each lug nut Is hand polished or tumbled before plating resulting in longer lasting superior finish Manufactured to OEM factory standards