Mikuni Replacement Screws Home Depot? Lowes?

[JohnMetta]

Good Morning,
I'm looking for Mikuni Throttle Shaft screws on a 1999 Seadoo Challenger with twin 787's.
Its part #4 on this link.
http://www.powersedge.com/pages/Oem...,_5675//5679,_1999/02-_Carburetors/5850/10259


Does anyone know the size of these screws? Will a local store carry them?

Thanks in advance.