Master Lock® No. 3Ka Laminated Padlock – 3/4″ Shackle – Keyed Alike Master Lock® No. 3Ka. Keyed Alike.Two Keys Included. 1-9/16″Wide Laminated Steel Body For Superior Strength. Hardened Steel 9/32″ Diameter Shackle For Extra Cut Resistance. 4-Pin Cylinder Helps Prevent Picking. Dual Locking Levers Provide Extra Pry Resistance. Top-And-Bottom Bumpers For Great Scratch Resistance. Proprietary Rustproofing For Longer Life. Shackle Measures 3/4″ Inside Height And 5/8″ Inside Wide. The Master Locks Are.