89.10.1XX All Macht Schnell Competition fasteners are hardened and tempered to strength class 10.9 or 10 according to DIN/ISO standard 898. They meet the statutory requirements of all countries - including the USA. All studs/nuts feature a black plating process for OEM appearance.Final inspections are not restricted to random quality checks. Every single fastener is tested to ensure compliance with specifications. Studs/nuts are also offered individually and should be replaced after every race season.   Competition Wheel Stud Kit Features: 45mm length allows for the use of close-ended lugs & locks (Note: cannot be used with any spacer)  75mm length allows for most spacer thicknesses (up to +12mm) to be used without changing studs  90mm length allows for spacer thicknesses (up to +20mm) to be used without changing studs 10.9 Grade Strength Class for ultimate strength and safety Bullet Tip prevents cross-threading (except for 45mm length) Faster and easier wheel changes Eliminates the need for balancing the wheel while threading in stock wheel lugs Black zinc coating for additional strength and corrosion/wear resistance Allen key insert for easy installation Fits most BMW models    Specifications: Shank length: 45mm/75mm/90mmThread pitch: 12mm x 1.5, 14mm x 1.25 Models Supported: 12mm Studs 14mm Studs 2008+ BMW E82/8 1-Series & 1M 2012+ BMW F30 3-Series 1992-2012 BMW E36, E46 & E9X 3-Series & M3 2011+ BMW F10 5-Series & M5 2004-2010 BMW E60/1 5-Series & M5 2012+ BMW F13 6-Series & M6 2005-2010 BMW E63 6-Series & M6 2009+ BMW F01 7-Series 2002-2008 BMW E65 7-Series M3 (F80) 1996-2002 BMW E36 Z3 & Z3M M4 (F82 / F83) 2003+ BMW E85 & E89 Z4 & Z4M