MORTISE LOCKS PEACA GPS 170 Meticulously crafted sleek design with special through hole male female screw in- sleeve system for increased mounting strength of the handle pair. Meticulously crafted sleek design with special through hole male female screw in- sleeve system for increased mounting strength of the handle pair. GPS 173 GPS 153 Meticulously crafted sleek design with special through hole male female screw in- sleeve system for increased mounting strength of the handle pair.