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Hexagon Head Bolts UNC Grade 8.8 (High Tensile / High Tension Bolt)

  • STANDARD ANSI B18.2.1, SAE J429
    MATERIAL 8.8 (SAE GRADE5)
    COATING BLACK
    CODE AUC
    UPDATE 04-08-2020



     

D (DIAMETER) 1/4  5/16 3/8 1/16 1/2 9/16 5/8 3/4 7/8 1"  1.1/8 1.1/4 1.1/2
P (PICTH) NC
  20 18 16 14 13 12 11 10 9 8 7 7 6
K (HEAD THICKNESS) 4 5.2 6 7.1 7.9 9.1 9.9 11.9 13.9 15.5  17.5 19.8  23.8
S (WIDTH ACROSS FLAT) 7/16 1/2 9/16 5/8 3/4 13/16 15/16 1.1/8 1.5/16 1.1/2 1.11/16  1.7/8  2.1/4
 b≤6” 19 22.2 25.4 28.5 31.7 34/9 38/1 44.4 50.8 57.1      
 b>6”                          

 


 

  

1 Piece