The Square Post Fulcrum Gate Latches have a heavy-duty, galvanized steel construction and are designed for commercial and industrial gates. The fulcrum latch is known for secure and reliable performance, is pad-lockable, and prevents pad-lock cutting because of its incredible design. Our Square Post Fulcrum Gate Latches fit posts ranging from 2 1/2" Sq. to 4" Sq. and 2" Sq. gate frames.