A head shield device having a frame and a replaceable lens. An engagement
axle having an large dimension and a small dimension is attached to the
frame. The lens defines an aperture with a neck and an enlarged inner
body. The small dimension of the axle is adapted to pass through the neck
and rotation of the axle to the large dimension locks the lens in place
on the frame. The axle rotation is controlled by a control device located
on a tab assembly forming the engagement axle.