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    Details
    
       
    
         
    Standard
    Normal diameter
    Total length (mm)
    Accuracy of thread
    Material
    Performance degree
    GB 897
    M6~M48
    26~348
    6g
    Carbon and alloy steel
    or
    Stainless steel
    6.8, 8.8, 10.9, 12.9,
    A2-50, A2-70
    GB 898
    28~360
    GB 899
    29~372
    GB 900
    32~396
    GB 901
    M6~M56
    25~500
    GB/T 13807.2
    M12~M120×6
    According to order
    GB/T 3103.4
    JB/T 2773
    M14~M56
    65~450
    6g
    Carbon and alloy steel
    According to standard
    JB/T 2774
    60~350
    JB 1164
    M16~M36
    100~480
    Carbon and alloy steel
    or
    Stainless steel
    JB/T 4707
    SH 3404
    M10~M90×3
    40~670
    HG 20613
    M10~M56×4
    45~500
    Special class (According to standard)
    HG 20634
    M14~M90×3
    60~500
    HGJ 75
    M10~M45
    40~500
    According to standard
    H 15
    M14~M45
    70~250
    Carbon and alloy steel
    H 16
    80~370
    DL 439
    According to the design requirement of power plant

    
       
    
       
      
    


    
    

    








    
  

    


 





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