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