www.Austin7Ulster.com › 5/16” BSF Barrel Nut - block to crankcase studs 5/16” BSF Barrel Nut - block to crankcase studs £2.50 5/16” BSF Steel Nut for crankcase studs 5/16” BSF Steel Nut for crankcase studs Add To Cart Added! You Might Also Like Oil Pump Cover Gasket £0.55 Starting Dog Housing Gasket (Mag Engine) £1.20 Set of 8 Big End Bolts - for white metal rods £51.20 Inlet/Exhaust Manifold Stud (Med) £2.55 Fuel Pump Gasket £0.90