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Item #: 81##
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    EMT Set-Screw Couplings Concrete tight Zinc die-cast - 1/2" to 4"

    These EMT Set-Screw Couplings are concrete tight and made of Zinc die-cast steel. Listed for use with steel and aluminum EMT, IMC, and rigid conduit. Couplings are available in multiple sizes rang from 1/2" to 4".

    Specifications

    EMT Set-Screw Couplings Concrete tight Zinc die-cast - 1/2
    Part Number Rod Size Dim A Dim B
    NPNB-810 1/2" .950 1.560
    NPNB-811 3/4" 1.145 1.869
    NPNB-812 1" 1.435 2.000
    NPNB-813 1-1/4" 1.828 2.500
    NPNB-814* 1-1/2" 2.075 2.890
    NPNB-815* 2" 2.535 2.567
    NPNB-816*† 2-1/2" 3.280 4.000
    NPNB-817*† 3" 3.910 4.500
    NPNB-8175*† 3-1/2" 4.460 4.814
    NPNB-818*† 4" 4.984 5.269
    Add suffix “RH” for Robertson Head Screws.
    *Concrete Tight When Taped.
    †Listed for use with steel and aluminum EMT, IMC, and rigid conduit.