Netters; A few errors there....AN4 is 1/4, not 7/16. I'm sure it was an oversight.
Here's what Wick catalog says for the bolts in question: AN3 is 3/16, AN4 is 1/4, AN5 is 5/16, AN6 is 3/8, AN7 is 7/16, and AN8 is 1/2. That's out of the catalog. Paul http://community.webtv.net/paulwasp/paulwaspspad