DU-BRO 4-40 THREADED COUPLER (2) Designed for use with DU-BRO® Kwik-Links and ball links. One end has no threads and can be soldered on and the other side has either 2-56 or 2MM threads. #212 has 2-56 threads, threaded 3/4" (19 mm) with an overall 1 1/4" (31.7 mm) length. For .072" diameter rod. Weight: 1 gram/ea #695 2mm Threaded Couplers are used with DU-BRO®'s 2mm Nylon Kwik-Links & can also be soldered on DU-BRO®'s 2 mm push-rods. The coupler length for this part is 1 1/4 "(31.7 mm). Weight 1 gram/ea #111 has 2-56 threads, threaded 3/4" (19 mm) with an overall length of 1 1/4" (31.7 mm). For 1/16" diameter rod. Weight: 0.5 gram/ea #336 4-40 Threaded Coupler is machined out of steel for maximum strength. Thread length is 5/8" (15.8 mm) long with 4-40 threads and an overall length of 1 1/2" (38 mm). Nickel plated for easy soldering. Weight: 1.5 grams/ea.
