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Hex Nut Profile Hex Nut Profile |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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About Nuts, Materials, and Finishes
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Mil. Spec. 18-8 Stainless Steel Hex Nuts

Choose these nuts for their adherence to strict military standards for material and construction. They're passivated for excellent corrosion resistance. Nuts may be mildly magnetic.
For technical drawings and 3-D models, click on a part number.
Thread Size | Wd. | Ht. | Specifications Met | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | ||||||
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1/4"-20 | 7/16" | 7/32" | Fed. Spec. FF-N-836, MS51971-1, Fed. Spec. QQ-P-35 | 10 | 000000000 | 00000 |
5/16"-18 | 1/2" | 17/64" | Fed. Spec. FF-N-836, MS51971-2, Fed. Spec. QQ-P-35 | 10 | 000000000 | 0000 |
3/8"-16 | 9/16" | 21/64" | Fed. Spec. FF-N-836, MS51971-3, Fed. Spec. QQ-P-35 | 5 | 000000000 | 0000 |
1/2"-13 | 3/4" | 7/16" | Fed. Spec. FF-N-836, MS51971-5, Fed. Spec. QQ-P-35 | 1 | 000000000 | 0000 |
5/8"-11 | 15/16" | 35/64" | Fed. Spec. FF-N-836, MS51971-7, Fed. Spec. QQ-P-35 | 1 | 000000000 | 0000 |
3/4"-10 | 1 1/8" | 41/64" | Fed. Spec. FF-N-836, MS51971-8, Fed. Spec. QQ-P-35 | 1 | 000000000 | 0000 |