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System of Measurement
Inch
Metric
Thread Size
0
-
8
0
1
-
7
2
2
-
5
6
3
-
4
8
4
-
4
0
4
-
4
8
5
-
4
0
6
-
3
2
6
-
4
0
8
-
3
2
8
-
3
6
1
0
-
2
4
1
0
-
3
2
1
2
-
2
4
1
/
4
"
-
2
0
Nut Type
Coupling
Hex
Round
With Sight Hole
Length
1
/
4
"
5
/
1
6
"
3
/
8
"
7
/
1
6
"
1
5
/
3
2
"
1
/
2
"
5
/
8
"
1
1
/
1
6
"
3
/
4
"
7
/
8
"
1
5
/
1
6
"
1
"
1
1
/
8
"
1
1
/
4
"
1
1
/
2
"
Material
Aluminum
Brass
Nylon 6/6
Stainless Steel
Steel
Threading
Fully Threaded
Partially Threaded
Width
1
/
8
"
3
/
1
6
"
1
/
4
"
5
/
1
6
"
3
/
8
"
7
/
1
6
"
1
/
2
"
9
/
1
6
"
5
/
8
"
1
1
/
1
6
"
3
/
4
"
1
3
/
1
6
"
7
/
8
"
1
5
/
1
6
"
1
"
Finish
Black Oxide
Hot-Dipped Galvanized
Zinc Flake Coated
Zinc Plated
Thread Direction
Left Hand
Right Hand
Fastener Strength Grade/Class
ASTM Grade 2H
ISO Class 8
ISO Class 10
SAE Grade 2
SAE Grade 5
SAE Grade 8
Hex Length
7/16"
1/2"
5/8"
3/4"
1"
1
1/8"
1
1/4"
1
1/2"
1
3/4"
2"
2
1/4"
2
1/2"
3"
4"
5"
7"
7
1/2"
8"
11 mm
15 mm
18 mm
25 mm
38 mm
50 mm
54 mm
65 mm
75 mm
Thread Type
Metric
UNC
UNEF
UNF
UNS
Fastener Strength Rating
Low
Medium
High
Extreme
Thread Spacing
Coarse
Fine
Extra Fine
Thread Length
1
/
8
"
9
/
6
4
"
5
/
3
2
"
1
1
/
6
4
"
0
.
1
8
7
"
3
/
1
6
"
1
/
4
"
5
/
1
6
"
3
/
8
"
0
.
4
3
7
"
7
/
1
6
"
1
/
2
"
3
5
/
6
4
"
3
9
/
6
4
"
5
/
8
"
Coupling Nut Profile
Extra Long
Standard
Hex Size
3/16"
1/4"
5/16"
3/8"
7/16"
1/2"
5/8"
3/4"
13/16"
7/8"
1"
1
1/8"
1
1/4"
1
3/8"
1
5/8"
1
3/4"
2"
2
3/8"
8 mm
10 mm
11 mm
13 mm
16 mm
18 mm
21 mm
Performance
Corrosion Resistant
High Strength
Lightweight
OD
19/64"
23/64"
27/64"
31/64"
37/64"
55/64"
63/64"
1
1/4"
1
1/2"
1
3/4"
2"
8 mm
10 mm
11 mm
13 mm
15 mm
18 mm
22 mm
28 mm
Thread Pitch
0.4 mm
0.45 mm
0.5 mm
0.6 mm
0.7 mm
0.8 mm
1 mm
1.25 mm
1.5 mm
1.75 mm
2 mm
2.5 mm
3 mm
3.5 mm
4 mm
RoHS
Compliant
Compliant with Exemptions
DFARS Specialty Metals
Compliant
Exempt
Not Compliant
REACH
Compliant
Not Compliant
Export Control Classification Number (ECCN)
EAR99
Specifications Met
ASME B18.2.2
ASTM Standard
DIN 6334
Thread Fit
Metric Class 6H
Unified Standard Class 2B
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