View cart “Castle Nut” has been added to your cart. Self Locking Nut$0.95 Self Locking Nut. Self Locking Nut quantity Add to cart Like Tweet Pin it SKU: MS21042-5 Category: Hardware Tags: Nut, Self Locking Additional information Additional information Weight 1 lbs Dimensions 9 × 7 × 1 in Brand Diamond, Mooney, Piper, Other Related products $2.40 Diamond, Mooney, Piper, OtherCastellated Nut Add to cart $2.37 Diamond, Mooney, Piper, OtherSelf Locking Nut Add to cart $2.79 Diamond, Mooney, Piper, OtherStainless Lock Nut Add to cart $237.71 Diamond, Mooney, Piper, OtherSeat Height Adjustment Nut Add to cart