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System of Measurement
Inch
Metric
Screw Size
1/2"
5/8"
3/4"
7/8"
1"
1
1/8"
1
1/4"
1
3/8"
1
1/2"
M12
M16
M20
M22
M24
M27
M30
M36
Finish
Galvanized
Zinc Plated
Zinc Yellow-Chromate Plated
Fastener Strength Grade/Class
ASTM Grade A325
ASTM Grade A490
ISO Class 8.8
ISO Class 10.9
SAE Grade 8
ID
0.520"
0.657"
0.785"
0.915"
1.045"
1.155"
1.310"
1.442"
1.570"
12.6 mm
16.7 mm
21.0 mm
23.0 mm
25.1 mm
28.4 mm
31.4 mm
37.7 mm
Thickness
0
.
1
0
4
"
t
o
0
.
1
1
1
"
0
.
1
0
4
"
t
o
0
.
1
8
0
"
0
.
1
2
6
"
t
o
0
.
1
3
3
"
0
.
1
2
6
"
t
o
0
.
2
2
0
"
0
.
1
2
6
"
t
o
0
.
2
4
0
"
0
.
1
4
2
"
t
o
0
.
1
4
9
"
0
.
1
4
2
"
t
o
0
.
2
3
0
"
0
.
1
4
2
"
t
o
0
.
2
4
0
"
0
.
1
4
2
"
t
o
0
.
2
6
0
"
0
.
1
5
8
"
t
o
0
.
1
6
5
"
0
.
1
5
8
"
t
o
0
.
2
4
0
"
0
.
1
5
8
"
t
o
0
.
2
6
0
"
0
.
1
5
8
"
t
o
0
.
2
7
0
"
0
.
1
5
8
"
t
o
0
.
2
8
0
"
2
.
6
m
m
t
o
4
.
6
m
m
OD
1.073"
1.323"
1.478"
1.760"
2.010"
2.260"
2.510"
2.760"
3.010"
27.3 mm
33.6 mm
40.6 mm
42.9 mm
48.7 mm
54.4 mm
58.4 mm
70.4 mm
Specifications Met
ASME Standard
ASTM Standard
Tension Indicated
1
0
,
0
0
0
l
b
f
1
0
,
5
0
0
l
b
f
1
2
,
0
0
0
l
b
f
1
5
,
0
0
0
l
b
f
1
7
,
0
0
0
l
b
f
1
9
,
0
0
0
l
b
f
2
4
,
0
0
0
l
b
f
2
6
,
0
0
0
l
b
f
2
7
,
0
0
0
l
b
f
2
8
,
0
0
0
l
b
f
3
5
,
0
0
0
l
b
f
3
9
,
0
0
0
l
b
f
4
9
,
0
0
0
l
b
f
5
1
,
0
0
0
l
b
f
6
4
,
0
0
0
l
b
f
Performance
Corrosion Resistant
High Strength
Tension Indicating
Hardness
Rockwell C33
Rockwell C37
Thread Size
1/2"
-13
5/8"
-11
3/4"
-10
Length
1
1/2"
1
3/4"
2"
2
1/2"
3"
RoHS
Not Compliant
Export Control Classification Number (ECCN)
EAR99
DFARS Specialty Metals
Exempt
Not Compliant
REACH
Compliant
Not Compliant
Fastener Strength Rating
Medium
High
Threading
Fully Threaded
Partially Threaded
Head Height
3/8"
29/64"
17/32"
Head Width
3/4"
15/16"
1
1/8"
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