Tethered fastener

A fastener for securing a member (12) to a body (32), the fastener comprising: an elongate shaft (14) having an insertion end (22) and a support end (14i); a first securing means (20) extending from the insertion end (22); and a second securing means (16) arranged around the shaft (14) adjacent to the support end (14i), wherein the support end (14i) is arranged to secure said member (12) to the shaft (14) and the second securing means (16) is arranged to detachably secure said member (12) to an aperture (7) in a body (32), and the first securing means (20) comprises a barbed portion (20f) arranged to prevent detachment of the fastener from the body (32) but to permit relative movement therebetween. Advantage is retention of the member (12) when a curtain airbag (not shown) is fired, displacing headlining (8) to a displaced position (8d).