When you do not have a suitable spanner to Unscrew the hex-head bolt will help out any screw with two nuts — preferably square-shaped.
Recommend to read
HARVEST ON THE HOOK
Many Housewives, in order not to keep transport heavy bags in his hands, hung them on the wire hooks on the rails. The same hook will help both the collector of the crop in the orchard:...
THE BOLT CAP
Under certain operating conditions (e.g., vibration) threaded connections progressively'm quite unhinged by it. To avoid this, do not have to screw the lock nut: its role can play and a...