www.Austin7Ulster.com › 5/16” steel washer heavy type 5/16” steel washer heavy type £0.07 5/16 washer heavy type, ideal for cylinder head studs 5/16 washer heavy type, ideal for cylinder head studs Add To Cart Added! You Might Also Like Rear main engine bearing housing Tab Washer for oil seal plate £1.10 Copper rivets for radiator neck surround £2.50 Grease Nipple 1/8" BSP £1.00 5/16” BSF Barrel Nut - block to crankcase studs £2.50 Bell housing / Crankcase to Gearbox Stud BSF or BSW £1.75