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INSIDE BOLT OF HEXANGULAR AND EVEN CIRCLE HEAD

d M3 M4 M5 M6 M8 M10 M12 M16
dk max 5.7 7.60 9.50 10.50 14.00 17.50 21.00 28.00
min 5.4 7.24 9.14 10.07 13.57 17.07 20.48 27.48
k max 1.65 2.20 2.75 3.3 4.4 5.5 6.60 8.80
min 1.40 1.95 2.50 3.0 4.1 5.2 6.24 8.44
s max 2.060 2.58 3.080 4.095 5.140 6.140 8.175 10.175
min 2.020 2.52 3.020 4.020 5.020 6.020 8.025 10.025
L 6-12 8-16 10-30 10-30 10-40 16-40 16-50 20-50

 

 
     
 
 
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