tow hucks
#11
RE: tow hucks
ORIGINAL: jnellydodge
Save yourself the time of trying to make them yourself and the money of buying the entire mopar kit (its usually like $150-$200), and just get the brackets thru GODRAMIT....then get the chevy tow hooks and you are ready to rock....u can do the entire thing for under $80 easily, hardware, hooks and all....that's what im doing at least. you save yourself like $100 and alot of headaches.
-note: you cannot get JUST the brackets thru mopar, i checked you must purchase the whole damn kit.
Save yourself the time of trying to make them yourself and the money of buying the entire mopar kit (its usually like $150-$200), and just get the brackets thru GODRAMIT....then get the chevy tow hooks and you are ready to rock....u can do the entire thing for under $80 easily, hardware, hooks and all....that's what im doing at least. you save yourself like $100 and alot of headaches.
-note: you cannot get JUST the brackets thru mopar, i checked you must purchase the whole damn kit.
GODRAMIT, what else do you fab up? I'm looking for some cool diff guards. You make anything like that?
#12
#14
#17
RE: tow hucks
ORIGINAL: GOD RAM IT
A Grade 8 bolt is the minum.
A Grade 8 bolt is the minum.
ORIGINAL: moranda02
So a grade 5 bolt is what I should use? Lol and I can agree with you welding to your frame is a bad idea for these
So a grade 5 bolt is what I should use? Lol and I can agree with you welding to your frame is a bad idea for these
Actually its commonly mistaken that people should use grade 8 bolts, however this is not correct I have studied metallurgy (the study of metal and its properties) among other things, and though technically true that a grade 8 bolt is stronger, because it is much harder, it all depends on what it is going to be used for.
First of let me start this info post by defining a couple things:
Ductility - the ability of a material to stretch or deform under load without breaking
Tensile Strength - the ultimate pull that a material will stand
Brittleness - the tendency of a material to fail suddenly by breaking, without any permanent deformation before failure
Hardness - a materials ability to resist penetration or indentation
Toughness - the ability of a metal to withstand rapidly applied load without breaking
Elasticity - the ability of a metal to return to its original shape and dimensions once the load has been removed
Impact Strength (aka Fracture Toughness) - the ability of a metal to withstand a sharp, high-velocity blow
Dynamic Loading - something that will be subjected to radially changing loads, reversals of stress, and quite often, sudden shock and vibration
Static Loading - something witch is stationary or relatively unchanging
Now with that sed a grade 5 bolt properties are, high Ductility, mid Tensile Strength, low Brittleness, low Hardness, high Toughness, high Elasticity, high Impact Strength, and is primarily for Dynamic Loading
A grade 8 bolts properties are, mid Ductility, high Tensile Strength, high Brittleness, very high Hardness, low Toughness, mid Elasticity, mid Impact Strength, and a grade 8 bolt is more for Static Loading however it can be used in some Dynamic Load situations
so for tow hooks, hitches, winch bumpers ect it is best to use gr 5 bolts. now with that sed if you have a gr 8 on something you don't need o run out and change it unless your jerking on it all the time you'll most likely be fine however switching to gr 5 would be an idea if its ever removed
#18
RE: tow hucks
OK so what should i use for my tow hooks/brackets now?? G5 or G8, your saying G5 ryans??? Wouldnt it take a hell of alot of force to sheer a G8?? wut about when your not jerking and you just have a constant tention...or a sudden jerk and then just the constant dead weight of the stuck vehicle, you'd still use G5?
#20
RE: tow hucks
Here is a SAE chart I dug up. Looks to me that G8 is 20 -25% stronger. Always have run G8, and they also bend, in my experience. Don't suspension kits come with G8 (dynamic loading?)? If your bolt head has three ridges it's G5, and 6 ridges are G8.
Make your own informed decision. If you want more info, a college library, preferably tech./engineering, should have design books with more info. BTW, I have a BSME.
I can't get it to print as a chart, kind of hard to read. First column is bolt size, the next 2 columns are G2, the next 2 columns are G5, the last 2 columns are G8. First column of each is coarse thread second column of each is fine thead.
Bolt Tensile Strength (Breaking Strength -lbs)
BoltDia Grade 2 Grade 5 Grade 8
(in) Coarse Fine Coarse Fine Coarse Fine
1/4 2350 2700 3800 4350 4750 5450
5/16 3900 4300 6300 6950 7850 8700
7/16 7850 8800 12800 14400 15900 17800
1/2 10500 11800 17000 19200 21300 24000
9/16 13500 15000 21800 24400 27300 30400
5/8 16700 18900 27100 30700 33900 38400
3/4 24700 27600 40100 44800 50100 56000
Make your own informed decision. If you want more info, a college library, preferably tech./engineering, should have design books with more info. BTW, I have a BSME.
I can't get it to print as a chart, kind of hard to read. First column is bolt size, the next 2 columns are G2, the next 2 columns are G5, the last 2 columns are G8. First column of each is coarse thread second column of each is fine thead.
Bolt Tensile Strength (Breaking Strength -lbs)
BoltDia Grade 2 Grade 5 Grade 8
(in) Coarse Fine Coarse Fine Coarse Fine
1/4 2350 2700 3800 4350 4750 5450
5/16 3900 4300 6300 6950 7850 8700
7/16 7850 8800 12800 14400 15900 17800
1/2 10500 11800 17000 19200 21300 24000
9/16 13500 15000 21800 24400 27300 30400
5/8 16700 18900 27100 30700 33900 38400
3/4 24700 27600 40100 44800 50100 56000