72 C-10 Lug Nut size?

[dcasalena]

72' custom deluxe c-10. I've got about 10 different looking lug nuts (including some washer/nut combinations) holding my wheels on currently. Everything is original on the hubs and the wheels are factory 5 lug steels. I have the 5 lug wheel caps that look like these below (but those aren't mine).

Shopping online for a set of lug nuts I find there are at least a dozen different sizes/threads/depths around. Is there a size standard or do I need to figure out what exactly I have. I'd like the factory handle / lug wrench to fit. Any help?

[OhOneWS6]

Should be 1/2 acorn style.

http://cgi.ebay.com/ebaymotors/Set-2...item3cb5a29b49

[dcasalena]

Thanks for the link. Good price and free shipping!