Cast Pipe Fitting Hex Locknut, Nickel Plated Copper Female Thread Lock Nuts for Plumbing - Silver
$13.99
What will I get? The hex lock nut, provides here, is in size of: Screw Type: NPT; Thickness: 6mm /0.24"; Thread Size: NPT2; Width Across Flat Size: 64mm /2.52". What is this?