539
  • Round head style with square neck
  • Fully-threaded
  • Available in 3/4 and 5/8 inch
  • High strength and wear resistance
  • Also known as a coach bolt or round head square neck bolt
  • Intended for use through iron-strengthening plates on either side of a wooden beam
  • Applications: Bare timber, wooden playgrounds or fences, curb protectors on snow plows and rock quarry shaker screens
  • Squared section under round head to grip and prevent rotation
  • Meets ASME B18.5 standards

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