Master Lock No. K1 Series Cut Keys

Designed For Master Lock's Traditional 4-Pin Pin Tumbler Cylinder, No. K1 Cut Keys Allow Customers To Replace Lost Or Worn Keys, Order Additional Keys For Existing W1 Series Locks And Maintain Keyed Alike Systems Across Laminated Steel, Brass & Magnum Locks.

Keyed Alike Convenience Allows One Key To Work Across The Entire W1 Family!

W1 Padlock That Use K1 Keyway:

• No. 1: 1KD, 1KA, 1LF, 1KALF, 1LJ, 1KALJ
• No. 2: 2KD, 2KA, 2LF, 2KALF, 2LJ, 2KALJ
• No. 3: 3KD, 3KA, 3LF, 3KALF, 3LH, 3KALH
• No. 4: 4KD, 4KA, 4LH, 4KALH
• No. 5: 5KD, 5KA, 5LF, 5KALF, 5LJ, 5KALJ
• No. 312: 312KD, 312KA, 312LH, 312KALH
• No. 315: 315KD, 315KA, 315LH, 315KALH
• No. M1 STS: M1STS, M1STSKA, M1STSLF, M1STSKALF, M1STSLJ, M1STSKALJ
• No. M5 STS: M5STS, M5STSKA, M5STSLF, M5STSKALF, M5STSLJ, M5STSKALJ

The K1 Cut Key Includes Five Key Ranges With More Than 5,500 Possible Key Numbers:

• 0301-0950
• 2001-2997
• 3030-3999
• A101-A2084
• X200-X2998

K1 Benefits:

• Genuine Master Lock Factory-Cut Replacement Keys
• Can Also Be Inserted Into Select Pro Series Lock Models
• Suitable For Replacing Keys Or Ordering Additional Copies
• No Original Key Is Required When The Correct Key Number Is Known

Q: What Is The Difference Between K1 And W1?

A: K1 Identifies The Factory Cut Replacement Key Product, While W1 Is The Compatible 4-Pin Cylinder System.

Q: Is K1 The Same As K1CR?

A: K1CR Is An Older Master Lock Product Designation For A Regular Factory Cut K1 Key. The Current Factory Part Number Is K1.

Q: Will A K1 Key Work With Any Master Lock Padlock?

A: No, K1 Keys Work With Compatible W1 Cylinders. Other Master Lock Keyways K7, K15, K17, K27, K6000 & K7000 Have Different Key Profiles That Fit Several Separate Locks.

Delivery: Please Allow 12-15 Working Days' Lead Time For All No. K1 Factory-Cut Keys