Finished Hex Jam Nut
Finished Hex Jam Nut
Finished Hex Jam Nut
Finished Hex Jam Nut
Finished Hex Jam Nut
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  • Description
  • Parameters
  • Application
  • Custom Reviews


MOQ: 500kgs
  • Product Features:

    Standard: ASME/ANSI B18.2.2; DIN439
    Size: 1/4''–4’’; M6 – M52
    Material: Carbon Steel, Alloy Steel, Stainless Steel, Brass
    Grade: ASTM A563 Gr. A; SAE J995 Gr.2
    Thread: M, UNC, UNF
    Finish: Plain, Zinc Plated(Clear/Blue/Yellow/Black), Black oxide, Nickel, Chrome, 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 standard of Finished Hex Jam 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 Finished Hex Jam Nut
Dimensions of Hex Nuts and 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 Comers Thickness Hex Nuts Thickness Hex Jam Nuts Hex Nuts 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
1/4 0.2500 7/16 0.438 0.428 0.505 0.488 7/32 0.226 0.212 5/32 0.163 0.150 0.015 0.010 0.015
5/16 0.3125 1/2 0.500 0.489 0.577 0.557 17/64 0.273 0.258 3/16 0.195 0.180 0.016 0.011 0.016
3/8 0.3750 9/16 0.562 0.551 0.650 0.628 21/64 0.337 0.320 7/32 0.227 0.210 0.017 0.012 0.017
7/16 0.4375 11/16 0.688 0.675 0.794 0.768 3/8 0.385 0.365 1/4 0.260 0.240 0.018 0.013 0.018
1/2 0.5000 3/4 0.750 0.736 0.866 0.840 7/16 0.448 0.427 5/16 0.323 0.302 0.019 0.014 0.019
9/16 0.5625 7/8 0.875 0.861 1.010 0.982 31/64 0.496 0.473 5/16 0.324 0.301 0.020 0.015 0.020
5/8 0.6250 15/16 0.938 0.922 1.083 1.051 35/64 0.559 0.535 3/8 0.387 0.363 0.021 0.016 0.021
3/4 0.7500 1-1/8 1.125 1.088 1.299 1.240 41/64 0.665 0.617 27/64 0.446 0.398 0.023 0.018 0.023
7/8 0.8750 1-5/16 1.312 1.269 1.516 1.447 3/4 0.776 0.724 31/64 0.510 0.458 0.025 0.020 0.025
1 1.0000 1-1/2 1.500 1.450 1.732 1.653 55/64 0.887 0.831 35/64 0.575 0.519 0.027 0.022 0.027
1-1/8 1.1250 1-11/16 1.688 1.631 1.949 1.859 31/32 0.999 0.939 39/64 0.639 0.579 0.030 0.025 0.030
1-1/4 1.2500 1-7/8 1.875 1.812 2.165 2.066 1-1/16 1.094 1.030 23/32 0.751 0.687 0.033 0.028 0.033
1-3/8 1.3750 2-1/16 2.062 1.994 2.382 2.273 1-11/64 1.206 1.138 25/32 0.815 0.747 0.036 0.031 0.036
1-1/2 1.5000 2-1/4 2.250 2.175 2.598 2.480 1-9/32 1.317 1.24S 27/32 0.880 0.808 0.039 0.034 0.039
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