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


MOQ: 500kgs
  • Product Features:

    Standard: ASME/ANSI B 18.2.1
    Size: 1/4”-3”
    Material: Carbon Steel, Alloy Steel, Stainless Steel
    Grade: ASTM A325, A490,A354 Gr. BC ; A307 Gr. B
    Thread: M, UNC, UNF
    Finish: Plain, Zinc Plated(Clear/Blue/Yellow/Black), Black oxide, Nickel, Chrome, H.D.G., Zinc-nickel alloy
  • 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 cold heading machines and high-medium frequency heating machines imported from Taiwan. JM can manufacture all kinds of fasteners of various head types with the specifications from M6- M56,1/4-2”in diameter, 20-1500 (1”-60”) in length, from Class 4.8 to 12.9 and from A429 Grade 2-8.



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


Heavy Hex Structural Bolt ANSI/ASME standard DIN standard
Nominal Size or Basic Product Diameter E F G H R LT
Body Diameter Width Across Flats Width Across Corners Head Height Radius of Fillet Thread Length for Bolt Lengths
6 in.and Shorter Over 6 in.
Max Min Basic Max Min Max Min Basic Max Min Max Nom Nom
1/2 0.5000 0.515 0.482 7/8 0.875 0.850 1.010 0.969 11/32 0.364 0.302 0.03 0.01 1.250 1.500
5/8 0.6250 0.642 0.605 11/16 1.062 1.031 1.227 1.175 27/64 0.444 0.378 0.06 0.02 1.500 1.750
3/4 0.7500 0.768 0.729 1-1/4 1.250 1.212 1.443 1.383 1/2 0.524 0.455 0.06 0.02 1.750 2.000
7/8 0.8750 0.895 0.852 1-7/16 1.438 1.394 1.660 1.589 37/64 0.604 0.531 0.06 0.02 2.000 2.250
1 1.0000 1.022 0.976 1-5/8 1.625 1.575 1.876 1.796 43/64 0.700 0.591 0.09 0.03 2.250 2.500
1-1/8 1.1250 1.149 1.098 1-13/16 1.812 1.756 2.093 2.002 3/4 0.780 0.658 0.09 0.03 2.500 2.750
1-1/4 1.2500 1.277 1.223 2 2.000 1.938 2.309 2.209 27/32 0.876 0.749 0.09 0.03 2.750 3.000
1 -3/8 1.3750 1.404 1.345 2-3/16 2.188 2.119 2.526 2.416 29/32 0.940 0.810 0.09 0.03 3.000 3.250
1-1/2 1.5000 1.531 1.470 2-3/8 2.375 2.300 2.742 2.622 1 1.036 0.902 0.09 0.03 3.250 3.500
1 -3/4 1.7500 1.785 1.716 2-3/4 2.750 2.662 3.175 3.035 1-5/32 1.196 1.054 0.12 0.04 3.750 4.000
2 2.0000 2.039 1.964 3-1/8 3.125 3.025 3.608 3.449 1-11/32 1.388 1.175 0.12 0.04 4.250 4.500
2-1/4 2.2500 2.305 2.214 3-1/2 3.500 3.388 4.041 3.862 1-1/2 1.548 1.327 0.19 0.06 4.750 5.000
2-1/2 2.5000 2.559 2.461 3-7/8 3.875 3.750 4.474 4.275 1-21/32 1.708 1.479 0.19 0.06 5.250 5.500
2-3/4 2.7500 2.827 2.711 4-1/4 4.250 4.112 4.907 4.688 1-13/16 1.869 1.632 0.19 0.06 5.750 6.000
3 3.0000 3.081 2.961 4-5/8 4.625 4.475 5.110 5.102 2 2.060 1.815 0.19 0.06 6.250 6.500
Heavy Hex Structural Bolt
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