Keyed Hasp Lock : 4 1/2" With Twist Knob : Keyed Alike : Chrome Plated Steel Metal : Uses Yale Keyway NO MORE LOST KEYS! - Convenient Locking Without Use Of Key, Simply Twist & Lock FREE LOCKSMITH KEYED ALIKE SERVICE - Keyed Alike Using Yale (Y-13) Keyway GET SECURE PROTECTION FOR YOUR VALUABLES - Steel Mounting Screws Are Hidden And Shielded When Locked PROTECTIVE SOLID HASP STEEL CONSTRUCTION - Bright Chrome Plated For Corrosion Resistance POPULAR SIZE FITTING 4 1/2" INCH HASP LENGTH - 1 5/8" High - 1/8" Thick Hasp Plate (Includes Screws For Wood Surfaces)