Identifying Bolts
|
Physical Traits
|
Grade
|
Size (Inches)
|
Min Strength (10ˆ3 psi)
|
 |
Low-med Carbon
|
SAE Grade 1
|
1/4-1/2
|
36
|
|
Low Carbon
|
ASTM A 307
|
1/4-1/2
|
36
|
|
|
Low-med Carbon
|
SAE Grade 2
|
1/4-3/4
|
57
|
|
|
7/8-1 1/2
|
36
|
|||
|
Low Carbon Cold Drawn
|
SAE Grade 4
|
1/4-1 1/2
|
100
|
 |
Med Carbon Quench & Temper
|
SAE Grade 5
|
1/4-1
|
92
|
|
ASTM A 449
|
1 1/8-1 1/2
|
81
|
||
|
ASTM A 449
|
1 3/4-3
|
58
|
 |
Low Carbon Quench & Temper
|
SAE Grade 5.2
|
1/4-1
|
92
|
 |
Med Carbon Quench & Temper
|
ASTM A 325 1
|
1/2-1
|
92
|
|
1 1/8 -1 1/2
|
81
|
 |
Low Carbon Quench & Temper
|
ASTM A 325 2
|
1/2-1
|
92
|
|
1 1/8 -1 1/2
|
81
|
 |
Weathering Steel Quench & Temper
|
ASTM A 325 3
|
1/2-1
|
92
|
|
1 1/8 -1 1/2
|
81
|
 |
Weathering Steel Quench & Temper
|
ASTM A 354bc
|
1/4-2 1/2
|
109
|
|
2 3/4-4
|
99
|
 |
Medium Carbon Alloy Quench & Temper
|
SAE Grade 7
|
1/4-1 1/2
|
115
|
 |
Medium Carbon Alloy Quench & Temper
|
SAE Grade 8
|
1/4-1 1/2
|
130
|
|
Steel Alloy Quench & Temper
|
ASTM A 354bd
|
1/4-1 1/2
|
130
|
 |
Low Carbon Quench & Temper
|
SAE Grade 8.2
|
1/4-1
|
130
|
 |
Steel Alloy Quench & Temper
|
ASTM 490 1
|
1/2-1 1/2
|
130
|
 |
Weathering Steel Quench & Temper
|
ASTM 490 3
|
1/2-1 1/2
|
130
|