We do not sell them separately. It is a Masterlock product 7KALF.
One of the best selling clamps in the piano industry fills a much needed requirement for a foolproof, attractive upright and grand piano locking device.
The clamp is made from a special hardened steel and has a rubber sleeve to protect the piano's finish. Clamp has a maximum opening of 6-1/8" wide, which should fit most any type of piano fallboard.
A wooden shim is provided for use when installing on pianos with smaller fallboard widths. This device consists of a lock and two keys which are keyed alike.
Screws are provided to attach the clamp underneath the keybed.
Extra Keys Available - $8.35 each