When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
go to ACE hardware & buy some button-head chrome allen head screws. measure the length of your old ones
Those screws are 1/4-20 x 5/8".
I prefer using SS Allen head screws instead of chrome, as the chrome in the hex head will chip and then rust after the screw is removed and reinstalled the next time you service it.