Please use a crush plate. You can contact this guy as he is an expert in this field and can get you whatever you need.
http://www.sabermfg.com/bolts.htm See N64KR at http://KRBuilder.org - Then click on the pics? See you Oct. 4 and 5, 2013 - KR Gathering in Mt. Vernon, Il ? MVN Daniel R. Heath -?Lexington, SC -----Original Message----- > (add a washer under any bolt crushing wood) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ++++++++++++++++++++++++++++++++++ I'd suggest a crush plate instead of just washers on a wood prop.