This high quality ball link for 4-40 pushrods offers smooth, secure operation with less slop.This is similar to part# hh-369, but this item has a larger 4-40 socket cap screw. 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 it. 1- 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 Note: Same as dh-2161 but this is a single pack.