Bottom Yolk Acorn Nut, for use on BSA models: A7, A10, A50, A65 & B40.O.E.M: 42-5110Size: 5/16” x 26TPISupplied: SinglesBottom Yolk Acorn Nut: 42-5110. G73SKU: 42-5110£5.45PriceQuantity*Add to Cart
