Grade 8 bolts.
- Thread starter .Gerrit
- Start date
Nick Griffin <3
Steel Member
just take a bearing and/or fork/deck with you to the hardware store.
Robert Reichley
Bronze member
5/16ths hex bolt is what i use always
for the metric i think its like 8mm
and the guys at ace hardware are well informed they should know
for the metric i think its like 8mm
and the guys at ace hardware are well informed they should know
iliveinahouse1
Bronze member
M8 for metric and what deck are you riding?
Yep, M8 is the metric size. Make sure the threaded section stops before the bearings for max strength.
There are three grades of bolt in common use in. Most bolts which you will come across will only deviate slightly from these three grades. The lowest grade is 4.6, commonly known as commercial grade. Next comes grade 8.8, known as structural grade, and finally, the highest grade is 12.9, known as high tensile bolts. The first number represents the ultimate tensile strength of the bolt, 400 MPa, 800 MPa or 1200 MPa respectively. The second number represents the point at which the bolt will permanently stretch. (Officially, the 0.2% proof load stress). A 4.6 bolt permanently stretches at 60% of its ultimate, an 8.8 at 80% and a 12.9 at 90 %.
Go for 12.9 and you'll have a pretty strong axle that shouldn't cost to much.
There are three grades of bolt in common use in. Most bolts which you will come across will only deviate slightly from these three grades. The lowest grade is 4.6, commonly known as commercial grade. Next comes grade 8.8, known as structural grade, and finally, the highest grade is 12.9, known as high tensile bolts. The first number represents the ultimate tensile strength of the bolt, 400 MPa, 800 MPa or 1200 MPa respectively. The second number represents the point at which the bolt will permanently stretch. (Officially, the 0.2% proof load stress). A 4.6 bolt permanently stretches at 60% of its ultimate, an 8.8 at 80% and a 12.9 at 90 %.
Go for 12.9 and you'll have a pretty strong axle that shouldn't cost to much.
Robert
Tr0ll
http://www.skyhighscooters.com/ProductDetails.asp?ProductCode=00-02-04
or they sell them at the hardware store.
MattScootZ
Member
I would measure how wide the back of the deck is then add a bit for the nut to go on. Also make sure you use a locknut as it will stay tight for longer.