1/4"-20 x 1 1/2" long (maybe 2"?) you can use either hex heads, or slotted or phillips style, your choice. _____Dan Nees_____ [email protected] 3 Scout's, one shotgun, 20/20 vision. http://members.tripod.com/~IHCaholic/scoutindex.html http://www.triplediamond.org