Specification - FHA and FHG Series - Floor Access Door Material - FHG Series has a door made of 3/16" (4) thick A36 steel diamond plate. FHA Series has a door made of 3/16" (4) thick structural grade aluminum diamond plate. Both doors can support 300 lbs. per square foot live load. Frame material is composite hot rolled steel angle frame. Finish - FHG Series is a primed grey finish. FHA Series is aluminum mill finish. Frame is finished with a bituminous coating. Door - Flush to frame. Equipped with an automatically locking hold open arm that locks the door in the open position. Also available are 1/4" (6) thick doors reinforced to meet AASHTO H20 traffic loading (without impact for the FHA Series). Frame - Complete with a 1" (25) anchor flange. All hardware is type #316 stainless steel. Hinge - Tamper proof steel hinges with stainless steel pins. Opening Device - Automatic locking hold open arm with red vinyl grip allows door to open 90 degrees. Handle - Stainless steel recessed lift handle in the door. Lock - The lock provided is one of the following: padlock staple, type #316 stainless steel snap lock with removable handle, recessed hasp, type #316 stainless steel pentahead, keyed deadbolt lock or hasp and staple. Warranty - Ten years.