Farm junk

Farm buildings are fascinating places full of old bits of things kept just in case. If I ever need a couple of tyres for a 1953 Fergie tractor, a horses feed bag circa 1962, a white Bogart raincoat or indeed a UNC Carriage Bolt (0.250") 1/4"-20 x 1/2" BS 1768 then this is where I would look first.