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System of Measurement
System of Measurement
Inch
Thread Size
Thread Size
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1/4"-20
Thread Type
Thread Type
UNC
Installed Length
Installed Length
default
0.25" to 0.499"
0.5" to 0.999"
Thread Direction
Thread Direction
Right HandLeft Hand
Helical Insert Style
Helical Insert Style
With Prong
Without Prong
For Minimum Material Thickness
For Minimum
Material Thickness
0.25" to 0.499"
0.5" to 0.999"
Specifications Met
Specifications Met
Mil. Spec.
NAS
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Thread Spacing
Thread Spacing
Coarse
Drill Bit Size
Drill Bit Size
17/64"
21/64"
25/64"
29/64"
17/32"
21/32"
H
For Maximum Hole Diameter
For Maximum Hole Diameter
0.25" to 0.499"
0.5" to 0.999"
For Tap Type
For Tap Type
Helical
Passivation
Passivation
Not Passivated
Passivated
Tensile Strength
Tensile Strength
150,000 psi
200,000 psi
Number of Inserts Included
Number of Inserts Included
6
10
36
54
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