Quick question regarding yoke modification in pre-J Mooney.  Purchased yokes and shafts, but there were NO pins/bolts or set screws for installation.  I called my area Mooney service center and was told that it calls for an AN4-23A Bolt...I received and it is a bolt vs. a pin and hasa washer and locking nut.  Does anyone have these yokes?  Do yours have a bolt/nut vs. a pin?  Thanks for your replies,   Scott