[Skeet_Man]

IIRC it's 3-56. It's a dog point screw, and not something you'll find anywhere locally anyways (you won't find 3-56 OR dog point screws locally, let alone both in one), so Kolar will definitely be your best bet. You can also pull the other one and measure the diameter, TPI, and length. These might work if you don't mind stainless: McMaster-Carr If you want black ones Kolar may be your only choice unless you want to buy 1000 of them from a supply warehouse.