BRAND NEW YD100

[MTBNewf]

so how do you know if you have the "upgraded hardware"?
should I replace it all anyway?
should I go SS?

also, I need an under bar tank.
anyone know for an aftermarket one? maybe in black
plastic?

Jim

 

[GreasyChris]

Looking at your pics, you have Allen head cap screws. That's a good start. Any markings on them? Grade 8.8 or better is recommended. I'd take one out and see if you can see a number on it anywhere, see if it looks cheap and Chinese, see if it bends easy.

 

[Chainlube]

Stainless bolts and nuts are crap, too brittle for anything other than show.

 

[Frogslayer]

I don't know where you buy your stainless at but we use stainless at my work all the time mainly for its corrosion resistances (Fertilizer spray trucks). We even use 3/4" stainless u bolts to hold down 1000 gallon tanks. You can get different grades of stainless. Cutting or drilling or sanding stainless sucks lol.

 

[Wrench]

Stainless is OK Don't put too much torque on it. The thicker the bolt the more ya can torque on it.
Example: A 1/4" Stainless bolt max torque is around 6 - 8 ft pounds depending on thread count.
A 3/4" Stainless bolt max torque is around 125 ft pounds. depending on thread count
For anything serious I always use USA grade 8 or Metric 12.9

 

[CrazyDan]

Anytime a bolt breaks I replace it with a 10.9 or 12.9 grade bolt. I got tired of buying the cheapest bolts to just have them break again.

 

[Vikingimike01]

If we are talking about bolts. 8.8 grade bolts for motorcycle springs? The suspension. size 6 or like 0.8mm thick ones.

 

[Wrench]

Dont get mixed up, Metric Grade 8.8 is not as strong as USA Grade 8
I know Vikingimike01 Knows this.

 

[Vikingimike01]

Oh. Now I do know. So do you guys think 8.8 grade steel bolts about 0.8mm thick ones are strong enough for suspensions?

 

[GreasyChris]

a standard size bolt will have line marks on the head of the bolt. add 2 to the total number of lines to get the grade. 3 lines on the head make it a grade 5 bolt. 6 lines make it a grade 8.
metric bolts are always stamped with a number indicating their grade. the lower the number the weaker the bolt. 8.8 is probably the most common and plenty strong 12.9 is even stronger.
0.8mm is barely thicker than a pubic hair do you mean an 8mm bolt?