This heavy-duty cargo container lock is designed to secure semi-trailer and shipping container doors with an adjustable locking distance from 9.84″ to 17.32″. Its steel construction and red powder-coated finish help resist bending, breaking, and corrosion during long-term use. The spring lock design allows quick operation without installation, and two keys are included for convenience. It is suitable for containers, semi-trailers, warehouse doors, and construction site office doors.








