The best replacement for key lock is combination lock.

The best alternatives to key lock are rated as following:
★★★★★  combination lock
★★  kimura
★★  americana
★  combo lock
★  page lock

Your alternative for key lock is not listed? Suggest!
Speaking about key lock, one probably shouldn't forget about hasp.

Other search terms related to key lock and their ratings are:
★★★★★ hasp
★ latch
You have in mind a companion for key lock and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of key lock in all years. Click on graph for more.
key lock
combination lock
kimura