Lockout Safety Supply 12 hole lockout hasp is designed to secure switches, valves and other energy devices from use while equipment is being serviced or repaired. The hasp is made from durable coated steel and measures 8.5"L x 2.25"W. The closed hasp hole size measures 1 ½". The hasp will accommodate 12 padlocks with a max shackle diameter of 3/8".