STANDARD FEATURES Performance Complies with ANSI A156.3, 1994, Grade 1, UL/ULC listed Rail Fits 28 ” to 36″ doors Latch Stainless steel 5/8 ” throw Backset 2-3/4″ Strikes Adjustable with slotted holes for adjustments Fasteners Accommodates wood or metal doors Door Range 1-3/4″ to 2″ thick Door Preparation Surface mounted Warranty 10 years UL Listed 3 hour fire rated device available Fire Rated UL labeled fire rated device available for use on doors rated up to 3 hours. Fire rated device also available for larger doors up to a maximum of 4’ x 8’. Specify when ordering. Strikes Other strikes available On Oct-02-14 at 13:50:04 PDT, seller added the following information: