Abstract: A snap fit fastener may include a head, a first group of wings, and a second group of wings. The first group of wings may be disposed axially around a center axis of the head, each of the first group of wings has a first length, and includes a first end connected to the head and a second end opposing the first end. The second group of wings may be disposed axially around the center axis of the head, each of the second group of wings has a second length, and includes a first end connected to the head and a second end opposing the first end. The first length may be different from the second length. A snap fit fastener with at least two groups of protrusions for fitting multiple heights is also disclosed.

Abstract: The latching apparatus of the present disclosure includes an actuator configured to change from a first position to a second position; a core connector coupled to the actuator at a first end, and having a cam disposed thereon; and a follower located between the actuator and the cam; wherein the actuator pushes the follower when changing from the first position to the second position, such that the follower engages with the cam on the core connector and causes the cam to rotate an angle to enter a latching state, wherein during the latching state, the core connector configured to hold the actuator secured at the second position. Switch systems and Methods for switching a latching apparatus are also disclosed.

Abstract: A snap fit fastener may include a head, a first group of wings, and a second group of wings. The first group of wings may be disposed axially around a center axis of the head, each of the first group of wings has a first length, and includes a first end connected to the head and a second end opposing the first end. The second group of wings may be disposed axially around the center axis of the head, each of the second group of wings has a second length, and includes a first end connected to the head and a second end opposing the first end. The first length may be different from the second length. A snap fit fastener with at least two groups of protrusions for fitting multiple heights is also disclosed.

Abstract: The latching apparatus of the present disclosure includes an actuator configured to change from a first position to a second position; a core connector coupled to the actuator at a first end, and having a cam disposed thereon; and a follower located between the actuator and the cam; wherein the actuator pushes the follower when changing from the first position to the second position, such that the follower engages with the cam on the core connector and causes the cam to rotate an angle to enter a latching state, wherein during the latching state, the core connector configured to hold the actuator secured at the second position. Switch systems and Methods for switching a latching apparatus are also disclosed.