Mortice Lock: 2157 – 3 Lever Deadlock Application: Interior and exterior door application. Can work on left and right handed doors Suitable for doors up to 54mm thick Specification Specification: Deadbolt locked or unlocked by key from either side May be keyed alike with 2077, 2177, 2277 and 2477 Square forend and locking plate Case Size: 78mm Backset: 57mm Case: Steel, black powder coat Forend: Stainless steel or brass Striking Plate: Finished to match forend Deadbolt: Brass, with hardened steel rollers Rebate Kit: 2900 Keying Groups: May be supplied to pass, differ and keyed alike with 2077, 2177, 2277 and 2477. Supplied with 2 steel nickel plated keys Keying: 100 standard differs Close Finish Finish: SS – Stainless Steel PB – Polished Brass finish Close Variants Variants: 2157-78SS (3 Lever Deadlock Stainless steel) 2157-78SSKA (3 Lever Deadlock Keyed Alike Stainless steel) 2157-78SSMKD (3 Lever Deadlock Master Keyed Stainless steel) 2157-78SSGMK (3 Lever Deadlock Grand Master Keyed Stainless steel) 2157-78PL (3 Lever Deadlock Polished Brass) 2157-78PLKA (3 Lever Deadlock Keyed Alike Polished Brass) 2157-78PLMKD (3 Lever Deadlock Polished Brass) 2157-78PLGMK (3 Lever Deadlock Polished Brass) Close Find out more about this product range: Contact Us You might also be interested in: Mortice Lock: L-2141 – Oval Cylinder Deadlock Mortice Lock: 21311 – 2 Lever Deadlock Mortice Lock: 21313 – 4 Lever Deadlock