The channel is morticed into the top of the door, and the head plate fits under the soffit. It is manufactured from mild steel with electro zinc-plated finish. There is a leaf spring at one end of the channel, and by reversing the channel it can be fitted to either hold the door open (leaf spring fitted nearest the door jamb) or function as a non-hold open stay (blank end fitted nearest the door jamb).
This product is supplied complete with seven No.6 x 19mm BZP countersunk wood screws.
Since this limit stay is often used on outward opening external doors, all parts are electro zinc plated to extend life. The channel is 357mm long x 30mm wide x 12mm deep. The minimum door leaf width for doors fitted with butt hinges is 610mm.
Successfully tested to Grade 3 (96 hours neutral salt spray exposure) in accordance with BS EN 1670:2007 Building Hardware - Corrosion Resistance. Report No. WIL 392103 dated 30.01.2018 refers.