adjusting
anchor bolt
bolt
bolt detail
bolt washer
chrome
closeup
collection
concrete wall
construction
construction industry
construction nut
equipment
fastening
flat spanner
grey
heap
hexagon
house improvement
industrial
maintenance
mechanic
metal
metallic background
no people
nobody
nut
nut fastener
occupation
repairing
round
screw
screw nut
screwbolt
screwnut
set
stack
stainless steel
steel
studio shot
tapped
thread
threaded
threading
work tool