Zinc bolt size

[VetteLT193]

Stupid question, but what's the allen bolt size for the main zinc on a Merc Alpha 1?

I have a full set of wrenches, but the standard ones are too small, and the bigger ones are all sockets and not long enough. I'd rather not buy out sears trying to figure out which one to buy.

Thanks!!

[Formula Jr]

3/8 inch. I tested one to be sure. You could also buy a set at a dollar store - for about a dollar. ;)

[VetteLT193]

3/8 inch. I tested one to be sure. You could also buy a set at a dollar store - for about a dollar. ;)

Thanks, I got one and it worked perfect (of course!)