Sealed joints. When installing a window in a tiled shower enclosure, make sure the joint between the jamb and the cementboard is sufficiently sealed with silicone caulk and a waterproofing membrane. The membrane bridging the two materials creates a stable substrate for the tile.
Spring bolts are used most frequently to secure single hung lower sash. The bolts are used in pairs and are slipped into 3/8″ diameter holes drilled through the lower stiles and engage holes drilled into the window jamb.