So I am getting ready to bolt the OS160FX to theengine mount. I have using 4-40 to mount my engine; but something says I may need something biger for the OS160FX. Randy hatfield -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.f3a.us/pipermail/nsrca-discussion/attachments/20050123/32da98a5/attachment.html