Master Lock No. 6840 Brass Lock: Master Lock 6840 Series Locks, Pro Series Solid Brass Padlocks Ideal for Marine & Offshore Security. Choose Keying: Keyed Different (KD), Keyed Alike (KA) or Master Keyed (MK); Choose Shackle: 1-3/16", 1-9/16", 2-7/16". Master Lock No. 6840 Brass Lock 1-3/4in (44mm) Wide Solid Brass Body Hardened Boron Alloy Shackle for Maximum Cut Resistance Dual Ball Locking Mechanism Resists Pulling and Prying Pro Series Locks Designed for Commercial and Industrial Applications Shackle: 1-3/16" (27mm), 1-9/16" (40mm) or 2-7/16" (61mm) Tall Cylinder: Rekeyable 5-Pin W6000 Cylinder with Pick-Proof Spool Pins Keying: Keyed Different (KD), Keyed Alike (KA) or Master Keyed (MK) Available Keyways: Also available with Master Lock W1, W15, W17, W27, W81 & W7000 Keyways (must specify keyway if different from Standard W6000) Specs_Width: 1-3/4" Wide; A: 5/16" (8mm) B: 1-3/16", 1-9/16" or 2-7/16"; C: 29/32" (23mm) Best Used For: Severe Use Outdoors, including Marine & Offshore Security; Security Gates & Fences; Construction Sites & Equipment For No. 6840 Extra Cut Keys Master Keys for No. 6840MK Locks
