PURPOSE: To make a baggage lock in a necessary thiness, to promote crime prevention efficiency and to make it possible to change a key in case a key in lost by moving a pin tumbler lock horizontally to use it to lock and unlock.

CONSTITUTION: A fixed body 7 is fixed to a casing 5, and a movable body 8 is so placed that it is moved in the horizontal direction against the fixed body 7. The contact surface of the fixed body 7 with the movable body 8 is a shear line. After that, a spring and a driver are stored on the fixed body 7, and a pin is stored in the movable body 8. Then, an intermediate body is placed between the pin and the driver, and a storing recess the intermediate body in the movable body 8 is bored. Successively, a key hole 2 is bored in the basic body 1, and the casing 5 is fixed. At that time, a pushed end 13 and an interlocking end 14 are arranged to a locked body 10 and are provided axially to the movable 8. When a locked piece 15 is interlocked with the interlocking end 14, the pushed end 13 is pushed by a recess 3 of the basic body 1 to turn the locked body 10, and the interlocking hold is released to open.