K&B Beer Shank with nipple - Chrome Plated 4 inch - 3/16 bore Made of heavy duty chrome plated brass to prevent metallic off flavors 3/16 inch bore/nipple 4 Inch threaded, total length 5-1/2 Inches - perfect for going through a standard 2x4 or 2x6 or refrigerator wall and gives a little extra lenght Standard 7/8 inch with forged brass hex nut Fully assembled Shank and Nipple, and forged brass nut to hold in place