Hex Coupling Nut
Hex Coupling Nut
Hex Coupling Nut
Hex Coupling Nut
Hex Coupling Nut
  • Description
  • Parameters
  • Application
  • Custom Reviews


MOQ: 500kgs
  • Product Features:

    Standard: ASME/ANSI B18.2.2; DIN6334
    Size: 1/4''–1-1/2’’; M3– M42
    Material: Carbon Steel, Alloy Steel, Stainless Steel, Brass
    Grade: SAE J995 Gr.2, 5,8; CL4, 5, 6, 8, 10, 12
    Thread: M, UNC, UNF
    Finish: Plain, Zinc Plated(Clear/Blue/Yellow/Black), Black oxide, Nickel, Chrome, Hot dip galvanization, DacroMat, Magni, etc
  • Website:

    www.jm-industry.com
  • Trade Term & Payment

    Trade Term:
    FOB/CIF/CFR/CNF/EXW/DDU/DDP
    Payment :
    T/T, L/C , D/A , D/P , Western Union,etc
  • Packaging Details:

    a. bulk in cartons (<=25kg )+ 36CTN/wood solid Pallet
    b. bulk in cartons 9"x9"x5" (<=18kg )+ 48CTN/wood solid Pallet
    c. according to customer special demand
  • Supply Ability & MOQ:

    1000 tons per month
    MinimumOrder:
    500kgs for each specification
  • Market:

    South&north Amrica/Europe/East&South east Asia/ Australia and ect.

Who We are?

  • Shanghai Jian & Mei Industry and Trade Co., Ltd. is well equipped with various multi-station nut cold heading machines and supporting multi-functional tapping machines imported from Taiwan. All the manufacturing processes are completed in the factory from drawing of raw material to delivery of finished products, except surface treatment process. JM can provide many kinds of standard and non-standard cold formed nuts, with the specification of M6-M30, 1/4-1”, Grade 4-12. We are also capable of providing various surface treatment processes, including white zinc plating, blue zinc plating, yellow zinc plating, black zinc plating, blackening phosphorating, nickel plating, hot dip galvanization, DacroMat, Magni and so on...


Quality control

  • The production management of our company strictly complies with ISO9001:2008 system. All our products are subjected to strict test and inspection in each process by the workers periodically, starting from the raw materials delivered to the factory.


Test Report


Each batch of exported products are identified with a unique batch number in the Finished product testing report and steel mill raw material quality inspection report.




  • If you need, the test report form the third part is available


IFI-128 2000

Dimensions of Hex Coupling Nut

Nominal Size or Basic Major Dia of Thread F G H
Width Across Flats Width Across Corners Thickness
Basic Max Min Max Min Basic Max Min
1/4 0.2500 3/8 0.375 0.365 0.433 0.416 3/4 0.76 0.74
5/16 0.3125 1/2 0.500 0.489 0.577 0.557 15/16 0.95 0.93
3/8 0.3750 9/16 0.562 0.551 0.650 0.628 1-1/8 1.13 1.11
7/16 0.4375 11/16 0.688 0.675 0.794 0.769 1-5/16 1.32 1.30
1/2 0.5000 3/4 0.750 0.736 0.866 0.839 1-1/2 1.51 1.49
9/16 0.5625 7/8 0.875 0.861 1.010 0.981 1-11/16 1.70 1.67
5/8 0.6250 15/16 0.938 0.922 1.083 1.051 1-7/8 1.89 1.86
3/4 0.7500 1-1/8 1.125 1.088 1.299 1.240 2-1/4 2.27 2.22
7/8 0.8750 1-5/16 1.312 1.269 1.516 1.447 2-5/8 2.65 2.60
1 1.0000 1-1/2 1.500 1.450 1.732 1.653 3 3.03 2.97
1-1/8 1.1250 1-11/16 1.688 1.631 1.949 1.859 3-3/8 3.40 3.34
1-1/4 1.2500 1-7/8 1.875 1.812 2.165 2.066 3-3/4 3.78 3.71
1-3/8 1.3750 2-1/16 2.062 1.994 2.382 2.273 4-1/8 4.16 4.09
1-1/2 1.5000 2-1/4 2.250 2.175 2.598 2.480 4-1/2 4.54 4.46
1-1/8 1.6250 2-9/16 2.562 2.481 2.959 2.828 4-7/8 4.91 4.83
1-3/4 1.7500 2-3/4 2.750 2.662 3.175 3.035 5-1/4 5.29 5.21
1-7/8 1.8750 2-15/16 2.938 2.844 3.392 3.242 5-5/8 5.67 5.58
2 2.0000 3-1/8 3.125 3.025 3.608 3.448 6 6.04 5.95
2-1/4 2.2500 3-1/2 3.500 3.388 4.041 3.862 6-3/4 6.80 6.70
2-1/2 2.5000 3-7/8 3.875 3.750 4.474 4.275 7-1/2 7.55 7.44
2-3/4 2.7500 4-1/4 4.250 4.112 4.907 4.688 8-1/4 8.31 8.19
3 3.0000 4-5/8 4.625 4.475 5.340 5.101 9 9.06 8.94
3-1/4 3.2500 5 5.000 4.838 5.773 5.515 9-3/4 9.81 9.68
3-1/2 3.5000 5-3/8 5.375 5.200 6.206 5.928 10-1/2 10.57 10.43
3-3/4 3.7500 5-3/4 5.750 5.562 6.639 6.340 11-1/4 11.32 11.17
4 4.0000 6-1/8 6.125 5.925 7.072 6.754 12 12.08 11.92
4-1/4 4.2500 6-1/2 6.500 6.288 7.506 7.168 12-3/4 12.83 12.67
4-1/2 4.5000 6-7/8 6.875 6.650 7.939 7.581 13-1/2 13.58 13.42
4-3/4 4.7500 7-1/4 7.250 7.012 8.372 7.994 14-1/4 14.34 14.16
5 5.0000 7-5/8 7.625 7.375 8.805 8.408 15 15.09 14.91
5-1/4 5.2500 8 8.000 7.738 9.238 8.821 15-3/4 15.85 15.65
5-1/2 5.5000 8-3/8 8.375 8.100 9.671 9.234 16-1/2 16.60 16.40
5-3/4 5.7500 8-3/4 8.750 8.462 10.104 9.117 17-1/4 17.35 17.15
6 6.0000 9-1/8 9.125 8.825 10.537 10.060 18 18.11 17.89
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