I use five ton forged tow truck hooks on the ends of my tow strap, and have been using the same system for 25+ years. I figure that if you can use one on the end of a winch cable, you can use them on a tow strap
you do realize that a winch does not apply a shock force any where near what a strap will see
The clubs/groups I ride will do not allow metal hooks on straps nor do we allow connecting 2 straps with a shackle
I wish I had the picture of the hole I got in my tail gate of my old truck from a shackle when the junk strap the guy had broke
yes it put a hole in the sheet metal of the tail gate ,and dented out the inside of the gate
would have killed some one as easy as I typed this line
best part if it was about 2 feet higher I would have been the one killed
need less to say
#1 no deep mud for me any more
#2 no stupid hard jerking to get some one out
#3 never connecting 2 straps with a shackle again