Our “branded” Ft. Knox Locks Stainless Steel puck lock body with the ultra high security and popular Abloy Sentry cylinder.  Often considered among the hardest cylinders to defeat.  These locks ship free with the purchase of a Ft. Knox Locks coupler lock or if at least two puck locks are purchased at the same time. If selection of “Purchased with a Ft. Knox Lock” is made and a coupler lock is not included in the order a separate invoice via Stripe will be sent to customers email.  Call us (855-369-6723) if you have ordering questions regarding shipping or quantities of keyed alike locks.