are these the screws you used lost aggressiva?
http://www.lunsfordracing.com/mm5/me...y_Code=STDFLAT They are 7/16 instead of 3/8, but all the extra would just continue going up like the 3/8. Was your problem maybe threading it straight? i might buy it to try, because theres no aluminum ones that come in that size that i can find, and the stock ones strip reallly easily.