Andy Taylor
Well-known member
I recently replaced my coupler with a larger one, 2.5" wide, 2,000 lb. maximum. I used two 3/8" galvanized bolts to mount to tongue. Are those strong enough, or should I use hardened bolts instead? Thanks.
Andy Taylor said:Any idea what grade a normal galvanized bolt is? The hardened bolts I just used for something else on the trailer were grade 8.
crazymanme2 said:I would not run grade 8.Grade 6 is plenty good.
Grade 8 is too hard & will break not bend.I want my tongue bolts to bend if they're going too not break.
bcbouy said:you really have to abuse your trailer in the worst possible ways to snap a bolt on your coupler.if you bust a grade 8 bolt,your trailer and boat are already toast :lol:
GYPSY400 said:bcbouy said:you really have to abuse your trailer in the worst possible ways to snap a bolt on your coupler.if you bust a grade 8 bolt,your trailer and boat are already toast :lol:
Yup... I use Grade 8 for everything.. Mostly because I get them for free!! At work, it's all we use.
I never had a bolt break, or bend etc if it was properly ( read: not over-torqued) installed.
Andy Taylor said:GYPSY400 said:bcbouy said:you really have to abuse your trailer in the worst possible ways to snap a bolt on your coupler.if you bust a grade 8 bolt,your trailer and boat are already toast :lol:
Yup... I use Grade 8 for everything.. Mostly because I get them for free!! At work, it's all we use.
I never had a bolt break, or bend etc if it was properly ( read: not over-torqued) installed.
I recently extended my trailer tongue with a sleeve, and used grade 8 hardened bolts. What would the proper torque be? I snugged them down good, but I didn't go nuts with them. Thanks.
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