This bolt has a square shoulder under a rounded head (Mushroom Head) which resists turning when the nut is tightened or removed. The bolt is driven into a hole the same size as the shank and then hammered the rest of the way, where the square shoulder locks firmly into place.
Double panic exit device set. Self handed and site reversible. Suitable for double rebated doors upto 1300mmm wide in public areas ie schools, hospitals, theatres etc
This bolt has a square shoulder under a rounded head (Mushroom Head) which resists turning when the nut is tightened or removed. The bolt is driven into a hole the same size as the shank and then hammered the rest of the way, where the square shoulder locks firmly into place.
Double panic exit device set. Self handed and site reversible. Suitable for double rebated doors upto 1300mmm wide in public areas ie schools, hospitals, theatres etc