Only a small, heavy lock, and a place where a tiny key might fit.

There was a heavy lock and chain on the front gate.

My Ma lifted the heavy locks, and her eyes changed.

A moment later, there came the sound of heavy automatic locks being released.

At the top was a door with a heavy lock.

To her relief, a heavy lock was thrown on the door.

It had a swinging door, fitted with a heavy lock.

Three bolts, one heavy lock, and then he would be free.

It had bars at the windows and a heavy lock upon its door.

He was shoved into number 17 and keys turned in the heavy locks outside.