What type of screws should be used to install the ignition modules?

The correct answer is that 10 mm screws are typically recommended for installing ignition modules. This specification is crucial because ignition modules are sensitive components that require secure mounting to function properly and withstand vibrations and thermal variations in the environment they operate in. Using the right screw size helps ensure that the module is held firmly in place, reducing the risk of intermittent connections that could lead to ignition problems.

In many instances, the manufacturer of the ignition module will specify the screw size in the installation guidelines, which usually recommends a 10 mm length for optimal performance. The other sizes, while they might seem suitable, either could be too long or too short, which can create issues such as overtightening or insufficient grip. Therefore, adherence to the specified screw size is vital for reliable ignition performance and longevity of the component's operation.