Locate the lock reference number. It will be a number or a letter and number, engraved on the cylinder of the lock.
Contact Sentry to order a new key. If you are going to pay using a credit card you can order online at www.sentrysafe.com or by phone (Visa/MasterCard only) by calling 800-828-1438. Standard shipping takes 21 days, but you can pay extra for express delivery within 48 hours (two business days) to anywhere in the continental United States.
Provide Sentry with the lock reference code and your return mailing address. The return mailing address is where your new keys will be sent. Express orders must include a street address; a postal box is not acceptable.
Pay Sentry for the replacement keys using a credit card, check or money order. The cost as of March 2011 is $12 for standard delivery or $25 for express delivery.
Mail your order to Sentry along with your check or money order. Express key
orders must be marked "Special Express Key Order" on the outside of your mailing envelope. If paying with credit card, you can order online or by calling 800-828-1438. The mailing address is:
Sentry Group
Attn: Dept. 200
882 Linden Ave.
Rochester, NY 14625