1) Easy installation No modification needed. Hex bolt head size: 8 mm. Bolt length: 14 mm (measured from under the washer). Washer diameter: 17 mm. Speed fastener dimensions: length 16 mm, width 11 mm. 2) Multiple fitment options Please note there are multiple bolt types available. Check the photo and the provided dimensions to ensure these are the correct ones. Compatibility includes a wide range of BMW models and MINI variants: 1er: E81, E82, E87, E88, F 3er: E21, E30, E36, E46, E90, E91, E92, E93 5er: E34, E39, E60, E61, F07, F10, F11, F18 6er: E63, E64, F12, F13 7er: E32, E38, E65, E66, F01, F02, F04 8er: E31 X1: E84 X3: E83, F25 X6: E71, E72 Z1: Roadster Z3: E36, E85, E86, E89 MINI: R50, R52, R53, R55, R56, R57, R 3) Practical use scenarios Replacing lost or worn fasteners on exterior body panels during bumper or trim replacement to restore panel alignment. Securing wheel well liners, engine bay covers, or interior trim panels where a bolt with a washer is appropriate. Restoration or maintenance projects on the listed BMW and MINI models, where the specified bolt dimensions and washer ensure proper fit. Key benefits at a glance Easy, modification installation. Clear, precise dimensions for reliable fitment. Broad compatibility across multiple BMW model families and MINI variants. Defined bolt head, length, and washer measurements help ensure correct replacement during repairs or restorations.