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Specifications Met Specifications Met | Show |
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Warning: Products have one, but not necessarily all, of the selected characteristics.
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System of Measurement System of Measurement |
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Thread Size Thread Size |
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Thread Type Thread Type |
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Locking Type Locking Type |
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 | Flex-Top |
Thread Fit Thread Fit |
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Finish Finish |
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Material Material |
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Hex Nut Profile Hex Nut Profile |
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 | Standard |
Thread Spacing Thread Spacing |
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Thread Direction Thread Direction |
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 | Right Hand |
Drive Style Drive Style |
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 | External Hex |
About Nuts, Materials, and Finishes
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Mil. Spec. Steel Flex-Top Locknuts for Heavy Vibration
Choose these locknuts for their adherence to strict military standards for material and construction. Threads at the top of the nut expand to grip the bolt on all sides for a stronger hold than distorted-thread locknuts. The strength of the bolt should match the strength of the nut to prevent damaging threads. These locknuts have equivalent strength to Grade 8 steel locknuts. A cadmium yellow-chromate plating provides corrosion resistance in wet environments and adds lubricity so they thread on smoothly.
For technical drawings and 3-D models, click on a part number.
| Thread Size | Wd. | Ht. | Specifications Met | Pkg. Qty. | Pkg. | |
Cadmium Yellow-Chromate Plated Steel | ||||||
|---|---|---|---|---|---|---|
| 5/16"-24 | 1/2" | 23/64" | MS21045-5 | 5 | 000000000 | 000000 |