4 PCS Universal Roof Box U Bolt Clamps Rooftop Cargo Carrier Rack Bolts 85mm Internal Width w/ 8 Lock Nuts and 2 Straps Cargo Carrier Mounting Fitting Kit IronFitment: For roof box of most cars, van, cargo carriers.(luggage racks up to 80mm width)Not suit for Thule Car RackSpecificationCondition: NewColor: BlackMaterial: Iron, Rubber, PlasticBolt diameter: 7.5mm/ 0.3inInternal width: about 83mm/3.27inCenter to center screw width: about 90mm/3.54inFitment Type: Direct replacementInclude: 4x Iron U bolts, 4x Rubber washers, 4x Plastic backing boards, 8x lock nuts and 2 bandages, 1x Black StickerHow to install this roof cargo box brackets?Put the roof box in the center of the roof and open the lid.Thread the U shaped hook from bottom to top.Put a rubber washers on the hook, and put plastic support boards.
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