2a 1st end thread class 12 1st end thread quantity per inch item has two holes thru the center 0.674 in. anodize surface treated un 1st end thread series
3a all ends thread class 2.847" overall length 12 all ends thread quantity per inch anodize body surface treated male coupling half un all ends thread series
3a all ends thread class 3.145" overall length 12 all ends thread quantity per inch anodize body surface treated male coupling half un all ends thread series