Abstract: A latch comprises a body having a forward end, a rearward end and a longitudinal axis, configured to be inserted into an aperture by its forward end in a first direction parallel to the longitudinal axis. The body comprises an inner part, and an annular outer housing surrounding at least part of the inner part and rotatable around the inner part. Latch fingers are moveably attached to the outer housing, each latch finger moveable between a closed and an open position, such that in the open position a latch finger prevents removal of the body from the aperture in the direction opposite to the first direction. A guide may be attached to the body and configured to bias the rotation of the outer housing, when the body is inserted into an aperture, to a predetermined rotational position, thereby also locating the latch fingers in a the predetermined rotational position.