BMW 1 3 5 Series F20 F21 F30 LCI G30 Mini F55 F56 Bearing Screw Bolt M12X1

BMW 1 3 5 Series F20 F21 F30 LCI G30 Mini F55 F56 Bearing Screw Bolt M12X1 is an original M12x1 bearing bolt designed for selected BMW 1, 3, and 5 Series models after the facelift (LCI), as well as the Mini F55 and F56. This component ensures a precise and stable connection at a critical structural junction, which translates into safe and predictable system operation. Thanks to its factory origin, it is a part perfectly matched to the manufacturer's specifications, allowing for the maintenance of the vehicle's original parameters and trouble-free installation.

Specifications and technical data

• SKU: 7617486
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7617486
• Substitutable numbers: 13527617486, 7617486
• Category: Other Brake Parts

Application and compatibility

The presented M12x1 bearing bolt has been designed to work in specific mounting points in BMW 1 Series F20/F21, 3 Series F30 LCI, 5 Series G30 models, and Mini F55 and F56 structures. This means that its geometry, thread pitch, and working length are adapted to the factory mounting sockets, which reduces the risk of play, improper tightening, or material overload. Choosing an original fastening element is particularly important in areas where variable dynamic loads are transferred, typical for suspension, hubs, or drivetrain components.

Technical characteristics of the M12x1 bolt

The M12x1 bearing bolt belongs to a group of precision fasteners where thread accuracy and dimensional stability are of key importance. In practice, this translates into:

• secure seating in the mounting socket without the risk of misalignment,
• even distribution of clamping forces on the contact surface,
• maintenance of the specified tightening force over a long period of operation.

Thanks to its factory origin, the bolt maintains compliance with the vehicle manufacturer's standards regarding strength class, thread type, and manufacturing tolerances. This is important wherever the stability of the connection has a direct impact on driving safety.

Benefits of using an original BMW component

Using an original bearing bolt instead of a replacement of uncertain origin reduces the risk of installation problems and accelerated wear of mating components. The most important advantages include:

• Factory fit – no need for modifications, adjustments, or the use of additional compensating washers.
• Repeatable manufacturing quality – essential when working in systems exposed to vibrations and variable loads.
• Consistency with other structural elements – maintaining the original operating characteristics of a given node (e.g., hub, bearing mount, suspension element).

For users who care about the technical correctness of repairs and want to keep the vehicle in a condition close to factory-new, choosing an original BMW component is a particularly beneficial solution.

Component condition and installation aspects

The offered bolt comes from disassembly and is classified as a used original part. Before reusing this type of element, it is recommended to verify the condition of the thread, working surfaces, and any signs of excessive stretching or corrosion, in accordance with the manufacturer's service procedures. In many applications, bearing bolts are treated as single-use items – the decision to reuse them should be made based on technical documentation and workshop practice.

During installation, it is crucial to apply the correct tightening torque and – if the manual specifies it – the angular tightening procedure. This allows for avoiding both insufficient and excessive material stress, which has a direct impact on the durability of the connection.

Expanding knowledge and selecting parts

If you are interested in how manufacturers design fastening elements and drivetrain systems in high-performance cars, it is worth reading the analysis of sports model designs – you will find it in the article Audi RS vs other models – what is hidden under the hood and chassis?, which discusses, among other things, the differences in engines, brakes, and chassis.

If you are planning a comprehensive repair or upgrade of the suspension or chassis area in your BMW and need other elements from the same group, such as mounting bolts, nuts, or small fasteners, check the available parts in the Other BMW category.

Additional information on how to consciously choose parts from disassembly and what to look for when buying original components from the secondary market is provided in the guide The best used car parts – a guide to the most frequently chosen original parts, which helps organize knowledge about selecting used parts for popular makes and models.