Original Thule T-Track Adaptor Bolts as supplied with a Thule 591 ProRide Bike Carrier 1 Bolt - Head = 20mm x 20mm, Shaft length = 35mm 2 Bolts - Head = 20mm x 20mm, Shaft length = 61mm These bolts were supplied with the Thule 591 ProRide Bike Carrier when new, they are for use with slotted Thule roof bars and have never been used.
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