> >
Hex Tap Screw (Full thread)
Hex Tap Screw (Full thread)
Hex Tap Screw (Full thread)
Hex Tap Screw (Full thread)
Hex Tap Screw (Full thread)
Hex Tap Screw (Full thread)
Hex Tap Screw (Full thread)
Contact Us
  • Description
  • Parameters
  • Application
  • Custom Reviews
A307A
J429


MOQ: 500kgs

  • Product Features:

    Standard: ASME/ANSI B 18.2.1
    Size: 1/4”-3”
    Material: Carbon Steel, Alloy Steel, Stainless Steel, Brass
    Grade: SAE J429 Gr.2, 5,8; ASTM A307Gr.A
    Thread: M, UNC, UNF
    Finish: Plain, Zinc Plated(Clear/Blue/Yellow/Black), Black oxide, Nickel, Chrome, H.D.G.

  • Website:

    www.jm-industry.com
  • 图标

    Trade Term & Payment

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

    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
  • 图标

    Supply Ability & MOQ:

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

    Market:

    South&north Amrica/Europe/East&South east Asia/ Australia and ect.
ANSI/ASME standard DIN standard

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



tap bolt lag bolts

Nominal Size or Basic Product Diameter E F G H R LT
Full-Size 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 Min Nom Nom
1/4 0.2500 0.260 0.237 7/16 0.438 0.425 0.505 0.484 11/64 0.188 0.150 0.03 0.01 0.750 1.000
5/16 0.3125 0.324 0.298 1/2 0.500 0.434 0.577 0.552 7/32 0.235 0.195 0.03 0.01 0.875 1.125
3/8 0.3750 0.388 0.360 9/16 0.562 0.544 0.650 0.620 1/4 0.268 0.226 0.03 0.01 1.000 1.250
7/16 0.4375 0.452 0.421 5/8 0.625 0.603 0.722 0.687 19/64 0.316 0.272 0.03 0.01 1.125 1.375
1/2 0.5000 0.515 0.482 3/4 0.750 0.725 0.866 0.826 11/32 0.364 0.302 0.03 0.01 1.250 1.500
5/8 0.6250 0.642 0.605 15/16 0.938 0.906 1.083 1.033 27/64 0.444 0.378 0.06 0.02 1.500 1.750
3/4 0.7500 0.768 0.729 1-1/8 1.125 1.088 1.299 1.240 1/2 0.524 0.455 0.06 0.02 1.750 2.000
7/8 0.8750 0.895 0.852 1-5/16 1.312 1.269 1.516 1.447 37/64 0.604 0.531 0.06 0.02 2.000 2.250
1 1.0000 1.022 0.976 1-1/2 1.500 1.450 1.732 1.653 43/64 0.700 0.591 0.09 0.03 2.250 2.500
1-1/8 1.1250 1.149 1.098 1-11/16 1.688 1.631 1.949 1.859 3/4 0.780 0.658 0.0g 0.03 2.500 2.750
1-1/4 1 2500 1.277 1.223 1-7/8 1.875 1.812 2.165 2.066 27/32 0.876 0.749 0.09 0.03 2.750 3.000
1-3/8 1.3750 1 404 1.345 2-1/16 2.062 1.994 2.382 2.273 29/32 0.940 0.810 0.09 0.03 3.000 3.250
1-1/2 1.5000 1.531 1.470 2-1/4 2.250 2.175 2.598 2.480 1 1.036 0.902 0.09 0.03 3.250 3.500
1 -3/4 1.7500 1.785 1.716 2-5/8 2.625 2.538 3.031 2.893 1-5/32 1.196 1.054 0.12 0.04 3.750 4.000
2 2.0000 2.039 1.964 3 3.000 2.900 3.464 3.306 1-11/32 1.388 1.175 0.12 0.04 4.250 4.500
2-1/4 2.2500 2.305 2.214 3-3/8 3.375 3.262 3.897 3.719 1-112 1.548 1.327 0.19 0.06 4.750 5.000
2-1/2 2.5000 2.559 2.461 3-3/4 3.750 3.625 4.330 4.133 1-21/32 1.708 1.479 0.19 0.06 5.250 5.500
2-3/4 2.7500 2.827 2.711 4-1/8 4.125 3.988 4.763 4.546 1-13/16 1.869 1.632 0.19 0.06 5.750 6.000
3 3.0000 3.081 2.961 4-1/2 4.500 4.350 5.196 4.959 2 2.060 1.815 0.19 0.06 6.250 6.500
3-1/4 3.2500 3.335 3.210 4-7/8 4.875 4.712 5.629 5.372 2-3/16 2.251 1.936 0.19 0.06 6.750 7.000
3-1/2 3.5000 3.589 3.461 5-1/4 5.250 5.075 6.062 5.786 2-5/16 2.380 2.057 0.19 0.06 7.250 7.500
3-3/4 3.7500 3.858 3.726 5-5/8 5.625 5.437 6.495 6.198 2-1/2 2.572 2.241 0.19 0.06 7.750 8.000
4 4.0000 4.111 3.975 6 6.000 5.800 6.928 6.612 2-11/16 2.764 2.424 0.19 0.06 8.250 8.500


Heavy Hex Structural Bolt
Tower Bolt Step Bolt Line Post Stud
hardware and fastener
Stud Bolt/Rod
Guardrail Bolt and Nut
Custom bolt and Custom Nut
My Reviews form Alibaba
Related Product
JM Hardware® A325 • A490 • Heavy Hex Structural Bolt/ Industrial Bolt(Hex Head/ Tension Control Head)/Thread Rod/Anchor Bolt（Xylan & Zinc/ Aluminum Coating available) JM Hardware® A325 • A490 • Heavy Hex Structural Bolt/ Industrial Bolt(Hex Head/ Tension Control Head)/Thread Rod/Anchor Bolt（Xylan & Zinc/ Aluminum Coating available)
Heavy hex bolts can be made with a few different materials including low and medium carbon steel, alloy, and stai...
JM Hardware® Guardrail Splice Bolt&Nuts/ Guardrail Clamp Attachment Bolt JM Hardware® Guardrail Splice Bolt&Nuts/ Guardrail Clamp Attachment Bolt
Size: Carbo...
JM Hardware® Concrete Bolt/ Screw Anchor/ Confast Screw/ Masonry Screw/ Consert Screw/ Wedge Bolt JM Hardware® Concrete Bolt/ Screw Anchor/ Confast Screw/ Masonry Screw/ Consert Screw/ Wedge Bolt
Concrete bolt/Masonry bolt/Self tapp...
JM Hardware® Clamp U Bolt/Square Bent U Bolt JM Hardware® Clamp U Bolt/Square Bent U Bolt
U bolt ...
Custom Reviews
Latest News
May 3rd，2019 ， Four-year customer from Australia visited us May 3rd，2019 ， Four-year customer from Australia visited us
Mar. 8th 2019, our old customers from Uruguay visit us Mar. 8th 2019, our old customers from Uruguay visit us
In the morning of 25th February, our customer from Israel visit us In the morning of 25th February, our customer from Israel visit us
Dec. 4th 2018, our customers from America visit us Dec. 4th 2018, our customers from America visit us
Nov. 15th 2018, our customers from Australia visit us Nov. 15th 2018, our customers from Australia visit us
Product Catalog
Product