497 4-40 SWIVEL BALL LINK
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
Includes: 1- swivel ball link (black plastic, self-threading for 4-40 rod,
1" in overall length) with a burnished brass ball pre-installed with a #4 hole in it1- 4-40 x 5/8" socket cap screw
1- brass spacer 1- 4-40 steel nut Requires: 4-40 threaded pushrod 3/32" allen wrench for tightening screw