Our Laminated Steel Padlock Section Features Master Lock No. 1 (1KD, 1KA, 1LF, 1KALF, 1LJ, 1KALJ, 1LN, 1KALN), No. 3 (3KD, 3KA, 3LF, 3KALF, 3LH, 3KALH), No. 5 (5KD, 5KA, 5LF, 5KALF, 5LJ, 5KALJ) & No. 7 (7KD, 7KA, 7LF, 7KALF, 7LJ, 7KALJ) Pin Tumbler Padlocks. Abus Laminated Series Include 41/30, 41/45, 41/50 Steel Locks with Eterna Coating and 41/40 Colored Bumper Locks.