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  Carriage Bolt  
    Product Model :  AS B108(Australian Standard)
 
 
AS B108 
(
Australian Standard )
1/4 5/16 3/8 7/16 1/2 5/8 3/4
£®1£©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
£®2£© When Bolt Length but °‹200°‹6" of When Bolt LengthL 38.10+2.50 38.10+2.50 38.10+2.50 38.10+2.50 38.10+2.50 38.10+2.50 38.10+2.50
£®3£© When Bolt Length but °‹200>6" L 88.90+3.00 88.90+3.00 88.90+3.00 88.90+3.00 88.90+3.00 88.90+3.00 88.90+3.00
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 11.45 13.08 16.30 20.14
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 15.00 18.61 22.17 25.75 29.33 36.47 43.63
MIN 13.51 17.10 20.66 24.24 27.82 34.96 42.12
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 °° °° °°
 
  (2,5,8 Grade)
 
 
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