Common Bolt Specifications

[Zembonez]

SAE gradehead marking / psi tensile rating

• 0-1-2 / 74,000
• 2 dashes / 100,000
• 3 dashes / 120,000
• 4-5 dashes / 133,000
• 6 dashes / 150,000

FROM ANOTHER SOURCE:

No lines
Unmarked
Intermediate
Quality
SAE Grades 0-1-2 Low Carbon Steel 65,000 p.s.i.

3 Lines -
Common
commercial
quality
Automotive and
AN Bolts
SAE Grade 5 Med. carbon steel
Tempered 120,000 p.s.i.

4 Lines -
Medium
commercial
quality
Automotive and
AN Bolts
SAE Grade 6 Med. carbon steel
Quenched &
tempered 140,000 p.s.i.

5 Lines -
rarely used
SAE Grade 7 Med. carbon alloy
steel 140,000 p.s.i.

6 Lines -
Best
commercial
quality
N.A.S. & Aircraft
SAE Grade 8 Med. carbon alloy
steel Quenched
and tempered 150,000 p.s.i.

Supertanium Special alloy
steel
Quenched &
tempered 160,000 p.s.i.

A-354-BD
A490 Med. Carbon
alloy steel
Quenched &
tempered 150,000 p.s.i.

Socket head
cap screw
Also N.A.S.
Aircraft
standard High carbon
Quenched &
tempered 160,000 p.s.i.

Here is a link to more info.

http://www.boltdepot.com/Fastener-Information/Materials-and-Grades/Bolt-Grade-Chart.aspx

 

[Draenor]

Is it me or are those pics not working?

The PSI is that shear strength or tensile strength?

 

[Stumpuller6.5]

no pics for me either.

 

[Zembonez]

Not sure what happened... they worked yesterday. I'll see if I can fix.

 

[daddy]

Hell, I never even knew there were supposed to be images. They've never shown up for me.

Probably gonna have to upload them by URL at PBucket?

 

[Zembonez]

No need. I modified the text.

 

[Z71 Kris]

where can I buy different grades of bolts? Would loewels or home de-pot carry something like, or do I need to find a specialty shop?

 

[Bigredmariner]

where can I buy different grades of bolts? Would loewels or home de-pot carry something like, or do I need to find a specialty shop?

The Box stores usually don't carry much of a selection grade wise. Usually they have grade 3 or 5. Check out Fastenal, also you may have better luck at a mom and pops type hardware store you may be surprised.

 

[Stumpuller6.5]

where can I buy different grades of bolts? Would loewels or home de-pot carry something like, or do I need to find a specialty shop?

The Box stores usually don't carry much of a selection grade wise. Usually they have grade 3 or 5. Check out Fastenal, also you may have better luck at a mom and pops type hardware store you may be surprised.

i second fastenal, they got lots of shit.

 

[Z71 Kris]

where can I buy different grades of bolts? Would loewels or home de-pot carry something like, or do I need to find a specialty shop?

The Box stores usually don't carry much of a selection grade wise. Usually they have grade 3 or 5. Check out Fastenal, also you may have better luck at a mom and pops type hardware store you may be surprised.

i second fastenal, they got lots of shit.

theres one in my zip code, nice!