Castle Nut$0.81 Castle Nut. Castle Nut quantity Add to cart Like Tweet Pin it SKU: AN320-3 Category: Hardware Tags: Castle, Nut Additional information Additional information Weight 1 lbs Dimensions 9 × 7 × 1 in Brand Diamond, Mooney, Piper, Other Related products $0.72 Diamond, Mooney, Piper, OtherSelf Locking Nut Add to cart $2.40 Diamond, Mooney, Piper, OtherCastellated Nut Add to cart $0.70 Diamond, Mooney, Piper, OtherCastellated Nut Add to cart $0.47 Diamond, Mooney, Piper, OtherTinnerman Nut Add to cart