Febi Bilstein Locking Nut, Part Number 39064. Specifications: Thickness 10.4 mm, Spanner Size 14 mm, Bolt Head/Nut Design Male Hex, Quality/Grade 8, Internal Thread Size M10 x 1,5. Surface is Copper coated. Weight is 0.006 kg. Designed for exhaust manifolds and compatible with various Mercedes-Benz models including W123, W108, W115, W113, W111, W110, Citaro, Intouro, Actros, Atego, Axor, Conecto, Econic, Integro, LK/LN2, LP, MK, NG, O series, OH, SK, T2/L, Tourino, Tourismo, Touro, Travego, Unimog, and Zetros. Cross-references include ASPART5NUT1001, 5NUT1002, AUGER104295, AUTEX551051, DT Spare Parts4.40101, ELRING380.530, FA1988-1005.10, 988-1005.100, IMEXIMX 001000 990 31 50, MEC-DIESEL961162, SAMPA010.1427, SCHNIEDER AUTOTECHBZT36.00038, STELLOX89-02328-SX, SWAG10 93 9064, TRUCKTEC AUTOMOTIVE01.43.344, 01.43.464, 81.10.003, 81.10.006, WILMINK GROUPWG1380239, and part numbers 0009902850, 0009903150, 913004010001, A0009902850, A0009903150, A913004010001, 999901010000, N913004010001, Q00113100020.