Its screw/bolt pattern is 12″ c-c wide and 3/4″ c-c high. It has a footprint height of 2-7/8″ (54 mm) and a weight of 13-1/16″ (332 mm). This automatic door closer’s projection is 2-1/8″ (54 mm). This is a door automatic closer for heavy doors that weigh up to 100kg-120kg (250lbs max).