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


MOQ: 500kgs
  • Product Features:

    Standard: ASME/ANSI B18.2.2;
    Size: 1/4''–4’’; M6 – M100
    Material: Carbon Steel, Alloy Steel, Stainless Steel
    Grade: ASTM A194 2, 2H, 4, 7, 7M,8, 8M; A563 Gr. A, C, DH
    Thread: M, UNC, UNF
    Finish: Plain, Zinc Plated(Clear/Blue/Yellow/Black), Black oxide, Nickel, Teflon, Hot dip galvanization, DacroMat, Magni and so on
  • 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.
the surface of Heavy Hex Nut
the standard of Heavy Hex Nut

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


the Parameters of Heavy Hex Nut
Dimensions of Heavy Hex Nuts and Heavy Hex Jam Nuts
Nominal Size or Basic Major Dia of Thread F G H H, Runout of Bearing Face, FIM
Width Across Flats Width Across Corners Thickness Heavy Hex Nuts Thickness Heavy Hex Jam Nuts Heavy Hex Nuts Heavy Hex Jam Nuts
Specified Proof Load
Up to 150,000 psi 150,000 psi and Greater
All Strength Levels
Basic Max Min Max Min Basic Max Min Basic Max Min Max
1/4 0.2500 1/2 0.500 0.488 0.577 0.556 15/64 0.250 0.218 11/64 0.188 0.156 0.017 0.011 0.017
5/16 0.3125 9/16 0.562 0.546 0.650 0.622 19/64 0.314 0.280 13/64 0.220 0.186 0.020 0.012 0.020
3/8 0.3750 11/16 0.688 0.669 0.794 0.763 23/64 0.377 0.341 15/64 0.252 0.216 0.021 0.014 0.021
7/16 0.4375 3/4 0.750 0.728 0.866 0.830 27/64 0.441 0.403 17/64 0.285 0.247 0.022 0.015 0.022
1/2 0.5000 7/8 0.875 0.850 1.010 0.969 31/64 0.504 0.464 19/64 0.317 0.277 0.023 0.016 0.023
9/16 0.5625 15/16 0.938 0.909 1.083 1.037 35/64 0.568 0.526 21/64 0.349 0.307 0.024 0.017 0.024
5/8 0.6250 1-1/16 1.062 1.031 1.227 1.175 39/64 0.631 0.587 23/64 0.381 0.337 0.025 0.018 0.025
3/4 0.7500 1-1/4 1250 1.212 1 443 1.382 47/64 0.758 0.710 27/64 0.446 0.398 0.027 0.020 0.027
7/8 0.8750 1-7/16 1.438 1.394 1.660 1.589 55/64 0.885 0.833 31/64 0.510 0.458 0.029 0.022 0.029
1 1.0000 1-5/8 1.625 1.575 1.876 1.796 63/64 1.012 0.956 35/64 0.575 0.519 0.031 0.024 0.031
1-1/8 1.1250 1-13/16 1.812 1.756 2.093 2.002 1-7/64 1.139 1.079 39/64 0.639 0.579 0.033 0.027 0.033
1-1/4 1.2500 2 2.000 1.938 2.309 2.209 1-7/32 1.251 1.187 23/32 0.751 0.687 0.035 0.030 0.035
1-3/8 1.3750 2-3/16 2.188 2.119 2.526 2.416 1-11/32 1.378 1.310 25/32 0.815 0.747 0.038 0.033 0.038
1-1/2 1.5000 2-3/8 2.375 2.300 2.742 2.622 1-15/32 1.505 1.433 27/32 0.880 0.808 0.041 0.036 0.041
1-1/8 1.6250 2-9/16 2.562 2.481 2.959 2.828 1-19/32 1.632 1.556 29/32 0.944 0.868 0.044 0.038 0.044
1-3/4 1.7500 2-3/4 2.750 2.662 3.175 3.035 1-23/32 1.759 1.679 31/32 1.009 0.929 0.048 0.041 0.048
1-7/8 1.8750 2-15/16 2.938 2.844 3.392 3.242 1-27/32 1.886 1.802 1-1/32 1.073 0.989 0.051 0.044 0.051
2 2.0000 3-1/8 3.125 3.025 3.608 3.449 1-31/32 2.013 1.925 1-3/32 1.138 1.050 0.055 0.047 0.055
2-1/4 2.2500 3-1/2 3.500 3.388 4.041 3.862 2-13/64 2.251 2.155 1-13/64 1.251 1.155 0.061 0.052 0.061
2-1/2 2.5000 3-7/8 3.875 3.750 4.474 4.275 2-29/64 2.505 2.401 1-29/64 1 505 1.401 0.068 0.058 0.068
2-3/4 2.7500 4-1/4 4.250 4.112 4.907 4.688 2-45/64 2.759 2.647 1-37/64 1.611 1.522 0.074 0.064 0.074
3 3.0000 4-5/8 4.625 4.475 5.340 5.102 2-61/64 3.013 2.893 1-45/64 1.763 1.643 0.081 0.070 0.081
3-1/4 3.2500 5 5.000 4.838 5.774 5.515 3-3/16 3.252 3.124 1-13/16 1 876 1.748 0.087 0.075 0.087
3-1/2 3.5000 5-3/8 5.375 5.200 6.207 5.928 3-7/16 3.506 3.370 1-15/16 2.006 1.870 0.094 0.081 0.094
3-3/4 3.7500 5-3/4 5.750 5.562 6.640 6.341 3-11/16 3.760 3.616 2-1/16 2.134 1.990 0.100 0.087 0.100
4 4.0000 6-1/8 6.125 5.925 7.073 6.755 3-15/16 4.014 3.862 2-3/16 2.264 2.112 0.107 0.093 0.107
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