ML20900 Series Electrified Mortise LocksTh ML20900 Electric Mortise Lock Series combines simplicity and reliability.Utilizing the proven ML2000 Series mortise lockset with the patented quick reversible latchbolt, the ML20900 series provides remote locking and unlocking. The electrified lock can be installed in a standard mortise prep with slight modification by door manufacturer. Handing Handed; quick reversible. The lockset can be re-handed without disassembling the lockcase.Door Thickness 1-3/4" (44mm) standard. Optional door thicknesses available; see Quick CodesBackset 2-3/4" (70mm).Lockcase Heavy-gauge steel, 5-7/8" (149mm) x 4" (102mm) x 15/16" (24mm).Front Heavy gauge steel, 8" (203mm) x 1-1/4" (32mm) x 3/32" (2mm). Accommodates flat doors and doors beveled 1/8" (3mm) in 2" (51mm).Armored Front Wrought brass, bronze or stainless steel attached by machine screws to lockcase front.Latchbolt 2-piece mechanical anti-friction insert, 5/8" (16mm) x l" (25mm) x 3/4" (19mm) throw.Auxiliary Latchbolt 9/16" (14mm) effective throw and 3/8" (10mm) effective auxiliary latch deadlocking.Hub ? Knob: stainless steel, 9/32" (7mm) x 9/32" (7mm). ? Lever: steel, 5/16" (8mm). (Including ) ? 3/8" (10mm) stainless steel.Spacing C. to c. knob/lever to cylinder: 3-5/8" (92mm) C. to c. knob/lever to thumbturn: 2-7/16" (62mm). Strike Wrought brass, bronze or stainless steel ANSI straight lip standard, 4-7/8" (124mm) x 1-1/4" (32mm) x 1-1/8'' (29mm) lip to center. Optional strikes, lip lengths and ANSI wrought strike box available. Trim Available with all ML2000 Series trim designs including the Vineyard? Collection and the Mus?o? CollectionEnvironmental Product Declaration (EPD) certified