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    Low Carbon Hex Nuts

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    HEX NUT HEAVY 5/16-18

    XHN5618
    • A hex nut that is both thicker and wider across the flats than a same sized finish hex nut.
    • Strongest of all comparably graded nuts because of its greater length of thread engagement and greater resistance to dilation.
    • Made from low carbon steel.
    • Proof load: 100,000 psi.
    • Zinc plated.
    • Size: 5/16"-18.