Lockwood Padlocks and Outdoor Security Ranging from small residential letterbox locks to high security commercial marine grade lock's, Lockwood can provide your padlock solution. Value Range PadlocksSecurity Rating: 1-3 Basic protection for barrier and deterrent applications. High Security Range PadlocksSecurity Rating: 4-6 Good to high security for general purpose applications. Maximum Security Range PadlocksSecurity Rating: 7-10 High to maximum security for all applications including commercial and industrial. Safety Lockout PadlocksPrevent accidents with Safety Lockout Padlocks from Lockwood. Padlock AccessoriesA padlock is only as good as the device it is secured to, ensure you purchase padlocks and padlock accessories of a similar rating.