This P series lock code numbers are specific to MASTER LOCK #7 Padlocks. Key will be cut to code and ready to work. If in doubt, compare the keyway shown in the example picture, to the face of your lock where the key enters. The milling of the key should match. SAVE 15% Buy 2 keys or more on this website and then use the code LOSTAKEY in the discount code redemption box during checkout.