ARROW MLX Series Cylindrical Locksets The MLX Series is a robust Grade 2 lockset featuring a FreeWheeling Lever for abuse resistance, two screw lockset install for quick installation and a 10 Year Mechanical Warranty. The perfect solution for replacing or upgrading lockets in commercial applications. Standard features Door Preparation: Requires standard 2-1/8" (53.97mm) borethrough door. Door thickness: Fits 1-3/8" (34.93mm) to 1-3/4" (44.45mm) doorsstandard. Backset: 2-3/4" (69.85mm). Latch: Stainless Steel 1/2" (12.7mm) throw, UL Listed, guarded latchbolt on all locking functions Latch Front: 1-1/8" x 2-1/4" for 2-3/4" (69.85mm) backset. Exposed Trim: MLX Levers are pressure cast zinc measuring 4-3/4" (120.65mm) in length. MLX Roses are wrought brass 3-11/32" (84.8mm) diameter. Total projection from face of door is 2-17/32" (64.5mm). Strike: 4-7/8" ANSI (123.83mm) Cylinder: Solid brass 6 pin, Arrow AR and Schlage CS Keyway,keyed different Keys: 2 brass keys. Handing: Non-Handed Thru-bolts: Removable thru-bolts standard on RL Series. DOWNLOADS and RESOURCES MLX Series Cut Sheet MLX Series Instruction