Du-Bro Fully Threaded Rods 2-56 Part No: 378. 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 fully threaded \(.072" rods w/2-56 thread. Fully threaded rods are stainless steel, perfect for making custom lengths for your needs.