Fifth wheel hitch parts

I purchased a used Curt hitch with the legs for a 2017 Ford F350 with the puck system in the truck bed. The previous owner had misplaced three of the T shaped bolts which attach the legs to the bed of the truck. I have been trying for 6 months now to purchase these bolts from Curt and have been told I would have to purchase the complete set of legs as they don't supply parts for them. Hard to believe you would sell a product and not supply parts for them. Anyone know where I could purchase these bolts. Thanks.