Bolts and nuts are shaped
We can describe a screw…
The heads of screws are slotted
Safety wire is easily…
Safety wire is made of
The tip of a rivet is pounded or mushroomed…
A cotter pin is also used…
Cotter pins are also referred to
to safety bolts and pins.
copper or steel.
by its slot.
twisted or bent.
as safetying devices.
to engage screwdrivers.
are split.
to form another head.
