loose (adj)

Hexagon Socket Head Cap Screws must be secured against working loose.

When loosening the screw connection of a plate, individual bolts may need to be adjusted in turn.

You will always be able to tell when a screw has become loose by the position of the panel element.

locker (adj)

Verwendete Zylinderschrauben sind gegen Selbstlockern zu sichern.

This roomy locker can be installed in various positions on a work bench.

The Mini-Locker features pre-punched mounting points that cannot be seen from outside.