Bolts

nz4x4 · Post by **nz4x4** » Fri Jul 07, 2006 4:26 pm

Just a quick question on bolts.

After reading on the web it seems that American grade 5 bolts are the same strength as metric 8.8. Is this correct? And if so can the grade 5 American bolt (imperial) be substituted for the 8.8? (winch comp specs?)

Here is a link I found requarding strengths. (bolts are 1/2")

http://www.boltdepot.com/fastener-information/Bolt-Grade-Chart.aspx

Or have i missed some thing major out and embarassing myself?

krawlr · Post by **krawlr** » Fri Jul 07, 2006 5:08 pm

ht with a 10m.m shank will be fine for cages etc,even s/s is just a strong just alot more$$ :wink:

nz4x4 · Post by **nz4x4** » Fri Jul 07, 2006 5:11 pm

I was thinking more along the lines of tow hooks, winch mountings, etc.

oldblue · Post by **oldblue** » Fri Jul 07, 2006 5:44 pm

Your right , but because the 1/2" has a larger x20%? cross section, it must be a stronger bolt. Its the shear strenght that is important when fitting tow hooks.