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System of Measurement
Inch
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Material
Steel
Nut Type
Nut Type
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Locknut
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Coupling
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Hex Nut Profile
Hex Nut Profile
StandardThin
Extra-Wide
Thin
Fastener Strength Grade/Class
Fastener Strength
Grade/Class
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click to learn more about Grade 5
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Grade 5Grade 8
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Grade C
Thread Spacing
Thread Spacing
Fine
Thread Direction
Thread Direction
Thread Type
Thread Type
UNF
DFARS (Defense Acquisition Regulations Supplement)
DFARS (Defense Acquisition
Regulations Supplement)
Thread Fit
Thread Fit
Class 2B
Drive Style
Drive Style
External Hex
Insert Maximum Temperature
Insert Maximum Temperature
220° F
250° F
Not Rated
For Cotter Pin Diameter
For Cotter Pin Diameter
5/16"
Minimum Slot Depth
Minimum Slot Depth
0.457"
Minimum Slot Width
Minimum Slot Width
0.37"
Distorted Thread Type
Distorted Thread Type
Top Lock
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11 Products

High-Strength Steel Nylon-Insert Locknuts—Grade 8

High-Strength Steel Thin Nylon-Insert Locknuts

High-Strength Steel Extra-Wide
Thin Nylon-Insert Locknuts

High-Strength Steel Top-Lock Distorted-Thread Locknuts

Inch

Steel Thin Flex-Top Locknuts for Heavy Vibration

Steel
Cadmium-Plated Steel

Low-Strength Steel Locknuts for use with Cotter Pins

Steel-Insert Locknuts for Extreme Vibration—Grade 5

Thin Steel-Insert Locknuts for Extreme Vibration