Size600901 - 5/16-18 x 3/4 - Slotted Screw
5/16-18 x 3/4 - Slotted Screw Used with 5/16 Steel Ball (Size600100) on original post - not to be used if you upgraded to the New Style Index Post (Size600501) Part # Size600901 Can be found on these parts lists: Price/Part List Key # 900 (#1000-4931) #88
