www.Austin7Ulster.com › 5/16” BSF Nut - cylinder head etc 5/16” BSF Nut - cylinder head etc from £0.25 5/16” BSF Steel Nut for cylinder head studs etc 5/16” BSF Steel Nut for cylinder head studs etc Quantity: Select Quantity Set of 14 Price each Add To Cart Added! You Might Also Like Fan Belt (Coil Engine) £8.50 Dynamo Housing to Crankcase Gasket (Mag engine) £1.20 1/2" Piston Gudgeon Pin (Floating Type) £3.00 Gearbox Gasket Set - 4 speed synchro type £6.90 Dynamo Housing Gasket (coil engine) £0.95