Titanium Hex Flange M5-.80x 40mm. Thread Length = 20mm, Grip length = 20mm.This bolt has a 7mm Hex so that it can be used in location where a 8mm hex socket will not fit.The heads have been forged and the threads have been rolled for better fatigue resistance. Made from Aircraft grade material that has been heat treated to a Minimum UTS of 140Ksi.