bolt, stud and nut isolate on white background. bolt and nut made from iron coated with zinc for protect corrode.

accessory background blue bolt bolts build close closeup coated construction corrode engineering equipment factory fasten fastening from hardware hexagon hexagonal imperial industrial industry iron isolate isolated machine machinery made mechanic metal metallic metric part protect repair round secure silver size stainless steel stud thread tighten tool turn unit used white with work zinc