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System of Measurement
Inch
Metric
Thread Size
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8
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4
M
1
M
1
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2
M
1
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4
M
1
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6
M
2
M
2
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5
M
2
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6
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3
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3
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5
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4
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7
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8
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1
0
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4
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3
3
M
3
6
M
3
9
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4
0
M
4
2
M
4
5
M
4
8
Length
1
/
8
"
5
/
3
2
"
3
/
1
6
"
7
/
3
2
"
1
/
4
"
9
/
3
2
"
5
/
1
6
"
1
1
/
3
2
"
3
/
8
"
1
3
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3
2
"
7
/
1
6
"
1
5
/
3
2
"
1
/
2
"
9
/
1
6
"
5
/
8
"
Material
Aluminum
Brass
Ceramic
Grade 2 Titanium
Neodymium
Nylon 6/6
Stainless Steel
Steel
Diameter
3/16"
1/4"
3/8"
Threading
Fully Threaded
Partially Threaded
Threaded on Both Ends
Threaded on One End
End Type
Plain
Straight
Tapped
Hex Size
1/4"
5/16"
3/8"
1/2"
13 mm
Gender
Female
Male
Thread Length
3/32"
1/8"
9/64"
5/32"
11/64"
3/16"
7/32"
1/4"
9/32"
5/16"
0.328"
21/64"
11/32"
3/8"
13/32"
0.437"
7/16"
0.45"
15/32"
1/2"
17/32"
9/16"
5/8"
21/32"
3/4"
25/32"
7/8"
29/32"
1"
1
5/32"
1
13/32"
4.8 mm
5 mm
6 mm
6.4 mm
9.5 mm
11.1 mm
12.7 mm
16 mm
Shape
90° Angle
Disc
Hex
Round
OD
1/4"
0.28"
19/64"
5/16"
3/8"
1/2"
5/8"
0.63"
0.787"
RoHS
Compliant
Compliant with Exemptions
Not Compliant
REACH
Compliant
Not Compliant
Export Control Classification Number (ECCN)
0A999
1C999
EAR99
DFARS Specialty Metals
Compliant
Exempt
Not Compliant
Finish
Black Oxide
Glazed
Nickel Plated
Zinc Plated
Zinc Yellow-Chromate Plated
Hardness
Mohs 7.5
Rockwell B40
Rockwell B50
Rockwell B55
Rockwell B56
Rockwell B60
Rockwell B61
Rockwell B65
Rockwell B70
Rockwell B80
Rockwell B83
Rockwell B85
Rockwell C33
Rockwell C60
Rockwell M85
Not Rated
Tensile Strength
9,000 psi
11,900 psi
40,000 psi
45,000 psi
50,000 psi
55,000 psi
60,000 psi
70,000 psi
75,000 psi
78,000 psi
80,000 psi
85,000 psi
150,000 psi
Not Rated
Screw Size
No. 8
Thread Direction
Left Hand
Right Hand
Fastener Head Type
Tapped
Thread Fit
Metric Class 6H
Unified Standard Class 1A
Unified Standard Class 1B
Unified Standard Class 2A
Unified Standard Class 2B
Unified Standard Class 3A
Shaft Type
Flat
Plain
Spiral
Shaft Length
1/2"
3/4"
1
1/4"
1
3/4"
2
1/4"
Specifications Met
ASME B18.8.2
ASTM Standard
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