HS front spar to nose ribs, rivets correct?

Ok guys, I'm about to pop rivet the front spar assembly to nose ribs. Page 08-11, step 4. The diagram says use LP4-3, my question is wont these be to short for the two inboard nose ribs where the outer rivets will also go thru the spar cap as well?

Thanks

Van's catalog

http://www.vansaircraft.com/cgi-bin/store.cgi?ident=1458900392-130-3&browse=hardware&product=poprvt

shows lp4-3 grip length as 3/16, lp4-4 is 1/4

Thanks Jake, yes I just talked to Vans and the lp4-3 has a pretty wide range of grip lengths so the 4-3's are correct.

Another technique for confirming correct LP rivet grip length.....

The witness lines on the rivet can be used to confirm proper size.

The mark at the shorter position is the minimum grip and the other mark is the maximum grip. So if you insert a rivet and the max grip line is visible but the minimum line is not, the rivet is of acceptable size at that location