Du-Bro 172 - 2-56 Threaded Rod .072 305mm (1)Du Bro 2 56 Threaded . 072" Rods (12 305mm) (36) This is a package of 36 steel rods that are 12" long. The diameter is . 072" and they are strong and bendable. They are threaded only 3 4" on one end with a 2 56 thread size. Can be used in conjunction with our nylon or steel Kwik Links or with ball links where extra long pushrods are needed. Bendable and strong. Rods are available 3 4" (19 mm) thread on one end (. 072" rods w 2 56 thread) (. 093" rods