uxcell 5pcs 3/8" PT Male to 1/4" PT Female Thread Hex Nipple Bushing Coupler Product Name : Hex Nipple;Hex Width : 17 mm / 0.67" Thread Size : 3/8" PT Male to 1/4" PT Female;Overall Length : 12 mm / 0.47" Material : Brass;Color : Brass Tone Net Weight : 40g Package Content : 5 x Hex Nipple