and Horizontal break strength of 7,000 lbs. Number molded in #78101 will allow you to research online to confirm manufactured strength.  and also confirm you are getting the better of other tie downs that look like the listed item but are made with different metals that do not have the same break strength.  Im selling my stock of these which were used to hold down auxiliary Fuel tanks in Cargo areas of Aircraft.  With L style seat tracks.  (see picture in photos).