This high quality ball link for 4-40 pushrods offers smooth, secure operation with less slop. Includes: 2- 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. 2- 4-40 x 5/8" socket cap screw 2- brass spacer 2- 4-40 steel nut Requires: 4-40 threaded pushrod 3/32" allen wrench for tightening screw Note: Same as dh-497 but this is a 2 pack.