Master Lock No. 1KA 3420 Keyway Expansion Padlock

Master Lock's 1KA-3420 Is An Ideal Padlock If You Ever Need To Expand Past Your Current Keys Into A Master Keying, Commercial-Grade Or Combined Multi-Platform System.

Matching "3420" Key System Locks:

• No. 1 Series: 1KA-3420, 1KALF-3420, 1KALJ-3420
  • Non-Matching: 1KD, 1LF, 1LJ
• No. 3 Series: 3KA-3420, 3KALF-3420, 3KALH-3420
  • Non-Matching: 3KD, 3LF, 3LH
• No. 5 Series: 5KA-3420, 5KALF-3420, 5KALJ-3420
  • Non-Matching: 5KD, 5LF, 5LJ
• No. 21 Series: 21KA-M1-3420, 21KALF-M1-3420, 21KALJ-M1-3420
  • Non-Matching: 21KD, 21LF, 21LJ

• No. K1 Series: K1-3420 Cut Keys
• Special Order Info: All Master Lock Factory Orders Require 18-20 Business Days