Airbag module coupling interfaces, assemblies, and related methods. Some embodiments may comprise one or more springs each defining a perimeter comprising at least three sides, wherein a first side of which may extend opposite a second side and may be at least partially angled towards the second side at an acute angle. A third side of the spring may connect the first and second sides. A spring mounting structure may be provided and may comprise a guiding interface for coupling the spring to the steering wheel. An opening in the guiding interface may be configured to receive a coupling prong, which may be configured to engage the third side of the spring.