A self-locking slam lock for dry riser outlet cabinets and doors — push the door shut and the lock engages automatically, giving tamper-proof security between fire service visits. Opens cleanly with a standard FB1 fire brigade key.Key specs FB1 keyway Self-latching Brass and steel construction Suits standard dry riser outlet arch and door cabinets Corrosion-resistant finish When to replaceFit one where the original lock is broken, missing or has been forced. Essential for keeping landing valve cabinets secure in residential blocks, student accommodation and commercial buildings where tampering is a regular issue.UK stock & deliveryStocked in our UK warehouse for quick dispatch. Pair with FB1 padlocks and straps for a complete cabinet security upgrade during a refurbishment or annual BS9990 service.