Du-Bro 336 - 4-40 Threaded Steel Couplers for .093 (2.4mm) rods (2)Machined out of steel for maximum strength. Thread length is 15. 8 mm long with an overall length of 36. 7 mm. Made to fit over a 2. 3 mm linkage rod (soldered on). Nickel plated for easy soldering.
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