YALE auto deadlocking cylinder nightlatch conforming to BS 3621:2004 insurance specification. PBS1 standard 60mm backset (B) or PBS2 for 40mm backset (B) for narrow style doors; 6 pin cylinder; Brasslux (B/LUX), Polished Chrome (CH) or Dark Metallic Grey (DMG) case finish;Brass cylinder supplied as standard - specify polished chrome on Checkout note if required. Supplied with 2 keys; 100,000 key differs; for door thickness 45mm - 57mm;.latchbolts is drawn by handle from inside and key outside;handle can be deadlocked by key prior to closing the door and entry can always be gained by key from the outside. Bolt can be held back by pushbutton or locked in either the withdrawn or extended position by a turn of the key in the handle.

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