bolt
construction
cut
engineer
engineering
equipment
flat
gray
industrial
industry
instrument
iron
isolated
key
maintenance
mechanic
metal
metallic
nut
object
out
overhead
products
repair
repairing
screw
screwing
service
shiny
silver
spanner
stainless
steel
technical
tool
tools
top
vanadium
view
white
work
work tool
workshop
wrench