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Coupling Nuts

  • Brand:

    T,TGR,XDM,OEM as requirement

  • Brief:

    DIN6334 Hexagon coupling nuts

  • Surface:

    Black oxide, Nickel, Possivation, Tin, Zinc Clear, Zinc Yellow, Zinc black

  • Material:

    stainless steel304,316,316L,317,317L,carbon steel,etc

  • Size:

    M6-M36,#6-6,Custom-made

  • MOQ:

    According to size
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product details

Also known as extension nuts, use them to connect and extend threaded rods. Use a rod coupling nut to extend, space or level a threaded rod or stud. Coupler nuts also allow you to connect two threaded rods. Reducer coupler nuts connect threaded fasteners with different diameters, like a metric bolt and a standard rod. For high-moisture situations, choose a coupler nut with a zinc chromate finish. Grainger has a full selection of rod coupling nuts to extend, connect or anchor threaded rods.

Screw Thread d 6# 8# 10# 1/4 5/16 3/8 7/16 1/2 9/16 5/8 3/4 7/8
d 0.138 0.164 0.19 0.25 0.3125 0.375 0.4375 0.5 0.5625 0.625 0.75 0.875
PP UNC 32 32 24 20 18 16 14 13 12 11 10 9
s min 0.302 0.302 0.302 0.428 0.489 0.551 0.607 0.663 0.782 0.782 0.963 1.212
max=nominal size 0.312 0.312 0.312 0.438 0.5 0.562 0.625 0.688 0.813 0.813 1 1.25
e min 0.344 0.344 0.344 0.488 0.557 0.628 0.692 0.756 0.891 0.891 1.097 1.382
max 0.361 0.361 0.361 0.505 0.577 0.65 0.722 0.794 0.939 0.939 1.155 1.443
k min 0.47 0.595 0.711 1.69 1.69 1.69 1.69 1.69 2.067 2.067 2.19 2.44
max 0.51 0.645 0.76 1.76 1.76 1.76 1.76 1.76 2.135 2.135 2.26 2.51
Screw Thread d 1 1-1/8 1-1/4 1-1/2 1-5/8 1-3/4 1-7/8 2 2-1/4 2-1/2 2-3/4 3
d 1 1.125 1.25 1.5 1.625 1.75 1.875 2 2.25 2.5 2.75 3
PP UNC 8 7 7 6 0 5 0 5 5 4 4 4
s min 1.325 1.45 1.575 1.95 2.481 2.662 2.844 3.025 3.388 3.75 4.112 4.475
max=nominal size 1.375 1.5 1.625 2 2.562 2.75 2.938 3.125 3.5 3.875 4.25 4.625
e min 1.511 1.653 1.825 2.275 2.828 3.035 3.242 3.448 3.862 4.275 4.688 5.101
max 1.588 1.732 1.876 2.309 2.959 3.175 3.392 3.608 4.041 4.474 4.907 5.34
k min 2.69 2.94 2.94 3.44 4.83 5.21 5.58 5.95 6.7 7.44 8.19 8.94
max 2.76 3.01 3.01 3.51 4.91 5.29 5.67 6.04 6.8 7.55 8.31 9.06
Screw Thread d 3-1/4 3-1/2 3-3/4 4 4-1/4 4-1/2 4-3/4 5 5-1/4 5-1/2 5-3/4 6
d 3.25 3.5 3.75 4 4.25 4.25 4.75 5 5.25 5.5 5.75 6
PP UNC 4 4 4 4 - - - - - - - -
s min 4.838 5.2 5.562 5.925 6.288 6.65 7.012 7.375 7.738 8.1 8.462 8.825
max=nominal size 5 5.375 5.75 6.125 6.5 6.875 7.25 7.625 8 8.375 8.75 9.125
e min 5.515 5.928 6.34 6.754 7.168 7.581 7.994 8.408 8.821 9.234 9.647 10.06
max 5.773 6.206 6.639 7.072 7.506 7.939 8.372 8.805 9.238 9.671 10.104 10.537
k min 9.68 10.43 11.17 11.92 12.67 13.42 14.16 14.91 15.65 16.4 17.15 17.89
max 9.81 10.57 11.32 12.08 12.83 13.58 14.34 15.09 15.85 16.6 17.35 18.11