Antanni bracket bolt size?

[REDWOLF]

Any one know what size bolt is needed to mount the antanni brackets to the side of the M1009 trucks, short of trying a bunch at the hardware store. What tread course or fine. They look to be course.

 

[319]

Mine were 5/16-18 (coarse)

 

[mistaken1]

Mine were 5/16-18 although I believe others have reported 3/8-16.

 

[ssdvc]

Yes, they are 5/16-18 course thread.

HOWEVER !!!..................do not try and use galvanized bolts ! The coating makes them very hard, if not impossible, to thread in, even after you chase them with a tap. If the bolt binds up, it may cause the nutsert to loosen and then, like me, you will have to weld the nutsert to the body to get the bolt off.

I went ahead and welded all 8 of mine after that, but it was a hard lesson to learn.