Support device for a vehicle occupant safety apparatus

A vehicle occupant safety apparatus (10) for helping to protect an occupant of a vehicle (12) having a side structure (16) comprises a cushioning device (14) having a deflated condition and an inflated condition in which the cushioning device (14) is inflated between an occupant of a vehicle (12) and the side structure (16) of the vehicle. The apparatus includes a fill tube (24) having a portion located in the cushioning device (14) that directs inflation fluid into the cushioning device (14) to inflate the cushioning device (14). A support device (40) has a portion that attaches to the fill tube (24) and supports the fill tube (24) and the cushioning device (14) in the vehicle (12). A fastener (170) fixedly connects the support device (40) and the fill tube (24) to the side structure (16) of the vehicle (12). The fastener (170) has a portion that cooperates with a tool for securing the fastener (170) to the vehicle (12). The support device (40) has a fastener receiving portion (44) for blocking movement of the tool transverse to the axis (178) and preventing engagement of the tool with cushioning device (14).