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Old 08-02-2018, 01:21 PM
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joedallas joedallas is offline
Join Date: May 2010
Location: Spring Hill Fl
Posts: 720
Default Details not in first post

There is a 1/4" at the end of the thread that is .374" and the hole in Vans bracket is taped to 1.5" deep using a 3/8" 16 Pulley tap and then Counter bored to 3.75 inches about 5/16" deep for the tail cone and on the wings they have a two step shank 7/16" 3/8" deep and the .374"1/4"deep to allow them to be in contact with vans Brackets and not contact the wing skins

Also I have chamfered the hole, However I use S hooks at the end of my tie down ropes

Originally Posted by EXflyer View Post
I see no radius at the base of the threads it should have one there and another thing is the sharp root of the threads will be a weak point. If you notice the tie down ring shown it has rolled threads with no sharp root. Also if one uses a thread lube such as copper coat on the threads will take care of things.
Joe Dallas
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