5400CK Series Knob Locks Yale 5400CK Knob Lock Yale 5400CK Knob Lock When demanding the highest standard of product performance in even the toughest industrial applications, look no further than the Yale 5400CK Series heavy-duty cylindrical locksets. Features ANSI/BHMA: A156.2, Series 4000 Grade 1 UL/cUL: UL/cUL fire-rated up to 3 hours Mechanism: Heavy-gauge steel, zinc-plated, dichromated Backset: 2-3/4" Latchbolt: 1/2" stainless steel throw standard Guardbolt: Deadlocks latchbolt when door is closed; standard on all locking functions Door Thickness: Adjustable from 1-3/8" to 2" Fronts: 2-1/4" x 1-1/8" universal Cylinders: Brass, 6-pin, keyed-random cylinder with two keys furnished standard Reversibility: Non-handed Strikes: 1-1/4" curved lip for 1-3/4" door standard; other lip lengths available to order; all reversible Finishes: Available in 3 finishes Warranty: 10-year mechanical Downloads Catalog Installation Instructions Templates Close Want to learn more? Complete the form below to get the conversation started. loading 4600 Series Knob Locks