many shiny metal studs with carving, nuts, iron rings, gaskets, metalwork tools and industrial vice on the table in the factory

anchor and background bolt bolts carving close closeup construction factory fasten fastener form gaskets handedness hardware helical hexagon industrial industry iron iso lead leadscrew machine manufacturing many mechanic metal metallic metalwork metric nut nuts pitch rings rod rods round shaft shiny shop silver stainless steel stud studbolt studs table thread threaded threadform tighten tool tools turn vice white work workpiece