Threaded Rod
Grade Marking
Nominal Size
Proof Load
Yield Str.
Mechanical Properties
Tensile Str.
Elong. %
R.A. %
Hardness Rockwell
Min.
Max.
A307
1/4″-4″
–
–
60 ksi min
18
–
B69
B100
B307
1/4″-4″
–
–
60-100 max
18
–
B69
B95
L7
1/4″-2 1/2″
–
105
125
16
50
–
–
Grade 36
1/2″-2″
–
36
58-80 max
23
40
–
–
Grade 55
1/2″-2″
–
55
75-95 max
21
30
–
–
Grade 105
1/2″-2″
–
105
125-150 max
15
45
–
–
A449
1/4″-1″
85
92
120
14
35
C25
C34
B7
1/2″-2 1/2″
–
105
125
16
50
–
C35
Grade Marking
Nominal Size
Proof Load
Yield Str.
Mechanical Properties
Tensile Str.
Elong. %
R.A. %
Hardness Rockwell
Min.
Max.
4.8
M6 – M42
–
320-340
400 – 420
–
–
–
–
8.8
M6 – M42
–
–
800
–
–
20
23
10.9
M6 – M42
–
–
1000
–
–
–
32
Grade Marking
Nominal Size
Proof Load
Yield Str.
Mechanical Properties
Tensile Str.
Elong. %
R.A. %
Hardness Rockwell
Min.
Max.
B8
1/4″ – 2″
–
30
75
30
50
223
35
B8M
1/4″ – 2″
–
30
75
30
50
223
96