The kit comes with all the necessary bolts and washers to attach the kayak carriers to your Rhino-Rack Heavy Duty Bars or Prorack trade crossbars.

Features:

• Attach the Nautic 570 and 571 Kayak and Canoe Carriers to your Rhino-Rack Heavy Duty Bar
• Attach the 562, 564, 566 to your Heavy Duty Bar
• Comes with bolts and washers only