Home10x Quality CNC Stainless Steel Jam NutsChoose either 1/2x28 or 5/8x24 thread pitchMil-spec USA made10x Stainless Steel Jam Nuts 1/2x28 OR 5/8x24 for .223/5.56 OR .308/300$14.95PriceThread PitchSelectQuantityAdd to Cart