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System of Measurement
Inch
Metric
Thread Size
2-56
4-40
4-48
6-32
6-40
8-32
8-36
10-24
10-32
1/4"
-20
1/4"
-28
1/4"
-32
5/16"
-18
5/16"
-24
5/16"
-32
Length
0.564"
0.59"
0.69"
3/4"
0.81"
0.84"
7/8"
1"
1.12"
1
1/8"
1.156"
1.16"
1
1/4"
1
3/8"
1
1/2"
Material
Aluminum
Brass
Buna-N
Stainless Steel
Steel
Thread Length
5/32"
3/16"
0.19"
13/64"
0.221"
1/4"
0.28"
0.31"
5/16"
0.37"
3/8"
0.406"
0.41"
7/16"
0.45"
Thread Pitch
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
Hex Length
1/8"
3/16"
1/4"
3/8"
9/16"
11/16"
3.2 mm
4.8 mm
6.3 mm
6.35 mm
6.4 mm
9.5 mm
Thread Direction
Left Hand
Right Hand
Unit Price
Less than $5
$5 to $10
$10 to $15
$15 to $20
$20 or greater
Thread Type
BSPP
BSPT
Metric
NPT
NPTF
UNC
UNF
Universal
For Adapting
Thread Direction
Thread Size
Thread Type
Pitch
0.35 mm
0.45 mm
0.5 mm
0.6 mm
0.7 mm
0.75 mm
0.8 mm
1 mm
1.25 mm
1.5 mm
1.75 mm
Tensile Strength
Less than 70,000 psi
70,000 psi to 79,999 psi
80,000 psi to 99,999 psi
100,000 psi to 119,999 psi
120,000 psi or greater
Not Rated
Finish
Black Oxide
Zinc Plated
Shape
Hex
Round
Thread Fit
ASME Interference Class 5
Metric Class 6g
Metric Interference Sk6
Unified Standard Class 1A
Unified Standard Class 2A
Unified Standard Class 3A
Hardness
Rockwell B56
Rockwell B65
Rockwell B67
Rockwell B70
Rockwell B80
Rockwell B82
Rockwell B83
Rockwell B85
Rockwell C19
Rockwell C20
Rockwell C22
Rockwell C23
Rockwell C24
Rockwell C25
Rockwell C26
Rockwell C27
Rockwell C28
Rockwell C29
Rockwell C30
Rockwell C31
Rockwell C32
Rockwell C33
Rockwell C35
Rockwell C39
Rockwell C42
Not Rated
Hex Size
3/16"
13/64"
1/4"
5/16"
3/8"
1/2"
9/16"
3/4"
15/16"
1
1/8"
4.5 mm
6 mm
6.4 mm
7.9 mm
8 mm
9.5 mm
10 mm
12.7 mm
13 mm
17 mm
17.4 mm
19 mm
Drive Style
External Hex
Hex
DFARS Specialty Metals
Compliant
Exempt
Not Compliant
Screw Size
No. 8
No. 10
1/4"
5/16"
3/8"
1/2"
M5
M6
M8
M10
RoHS
Compliant
Compliant with Exemptions
Not Compliant
Export Control Classification Number (ECCN)
2B999
EAR99
Thread Spacing
Coarse
Fine
REACH
Compliant
Not Compliant
Specifications Met
ASTM Standard
DIN Standard
Shoulder Diameter
1/4"
5/16"
3/8"
1/2"
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1,769 Products
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