Du-Bro 368 - M2 Swivel Ball Link for 2mm rod (1)Du Bro Swivel Ball Link 2mm with Hardware (1) This high quality ball link offers smooth, secure operation with less slop. You'd want to use this on any control surface where accuracy is required (like the throttle linkage). Includes: 1x swivel ball link (Black plastic, self threading for 2mm rod, 1" in overall length) with a burnished brass ball pre installed with a 2mm hole in it 1x 2x12mm socket cap screw 1x brass spacer 1x 2mm steel nut Requires: