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  Carriage Bolt  
    Product Model :  IFIC-40-1978
 
 
IFIC-40-1978 1/4 5/16 3/8 7/16 1/2 5/8 3/4
When Bolt Length but 2006"When Bolt LengthL 19.05+2.00 22.23+2.50 25.40+3.00 28.58+3.50 31.75+3.50 38.10+4.00 44.45+4.50
When Bolt Length but 200>6" L 25.40+2.00 28.58+2.50 31.75+3.00 34.93+3.50 38.10+3.50 44.45+4.00 50.80+4.50
Thread Rolled Blank (2AGrade) D MAX 5.47 6.94 8.41 9.84 11.31 14.25 17.26
MIN 5.42 6.89 8.36 9.79 11.26 14.20 17.21
Normal Shank D3 MAX 6.60 8.22 9.85 11.48 13.08 16.30 19.50
MIN 6.02 7.57 9.15 10.70 12.27 15.37 18.52
Square Nack Across Flats S MAX 6.60 8.22 9.85 11.48 13.08 16.30 19.50
MIN 6.23 7.80 9.35 10.95 12.50 15.65 18.83
Lenght of Square Neck H2 MAX 3.96 4.74 5.56 6.35 7.13 8.73 10.31
MIN 3.18 3.97 4.78 5.57 6.35 7.96 9.53
Head Diameter D2 MAX 15.08 18.26 21.43 24.61 27.78 34.13 40.48
MIN 14.30 17.48 19.87 23.04 26.22 30.97 37.32
Head Height H MAX 3.68 4.47 5.28 6.07 6.85 8.73 10.31
MIN 3.18 3.97 4.78 5.57 6.35 7.96 9.53
When Bolt Length but 200 Tolerance L2 1" 1.25"-2.5" 2.75"-4" 4.25"-6" >6"            
Diameter1/4 - 3/8 +0.50 +0.50 +1.00 +1.50 +2.50             
-0.75 -1.00 -1.50 -2.50 -4.50           
Diameter7/16 - 1/2 +0.50 +1.00 +1.50 +2.00 +3.00             
-0.76 -1.50 -2.00 -2.50 -4.50            
Diameter9/16 - 3/4 +0.50 +1.50 +2.00 +2.50 +3.50             
-0.76 -2.00 -2.50 -2.50 -4.50
Max Rod Length     200 300 400 400 400 500 500
 
  (2,5,8 Grade)
 
 
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