U bolt ability to resist sliding (is clamping force sufficient)
U bolt ability to resist sliding (is clamping force sufficient)
(OP)
I am rebuilding a 3500 GVW utility trailer. I want to replace the trailer tongue and add two cross members to add strength and do not want to have to weld them in place. Tongue is 3x3 box tube .189 wall thickness and so are the two new cross members. I want to use 1/2 inch u bolts and plates to secure the tongue to the new cross members and also u bolts to secure the cross members to the existing trailer frame (3x3 box tube also). Trailer empty weight will be 850 lbs. I do not plan on drilling any holes in the new tongue or cross members. Just want to bolt the elements together with grade 5 u bolts custom mode by a axle and spring shop.
My question is:
are u bolts and plates sufficient to prevent the tongue and/or cross members from slipping when towing the trailer.
thank you john w
My question is:
are u bolts and plates sufficient to prevent the tongue and/or cross members from slipping when towing the trailer.
thank you john w






RE: U bolt ability to resist sliding (is clamping force sufficient)
That being said, I would opt for a connection that didn't depend on friction of the parts if possible, so putting bolts through the members rather than around them.
I'm a little hazy on exactly what your geometry is, but you might consider putting flat bar in there instead of square tube.
RE: U bolt ability to resist sliding (is clamping force sufficient)
RE: U bolt ability to resist sliding (is clamping force sufficient)
RE: U bolt ability to resist sliding (is clamping force sufficient)