Model No.: AAA421 Description: Automatic Flush Bolt for Hollow Metal Doors Application: Automatic locking and release For securing the slave leaf of a pair of doors Standard installation requires two flushbolts, morticed into the top and bottom of the door for added security and to prevent the door from warping Suitable for use on swing doors Non-handed Finish: Satin Stainless Steel view more Model No. L AAA421A 8” AAA421B 12” Close Contact Us Model No.: AAA509 Automatic Flush Bolt Model No.: AAA510Automatic Flush Bolt Model No.: AAA702Automatic Flush Bolt