Bolt - Carriage, Fin Neck, ANSI (in)

Written by Matt Milbury. Posted in Bolt Datasheets

  • ASME Standards
    • ASME B18.5 -
  • Length (L) of a carriage bolt is measured from underside of head to the end of the bolt.
Nut
Bolt

Size

Body Diameter

C

Head Diameter

A

Head Height

B

Fin Thickness

D

Distance Across Fin

E

Fin Depth

F

MaxMinMaxMinMaxMinMaxMinMaxMinMaxMin
#10 0.199 0.182 0.469 0.438 0.114 0.094 0.098 0.078 0.395 0.375 0.088 0.076
1/4 0.260 0.237 0.594 0.563 0.145 0.125 0.114 0.094 0.458 0.438 0.104 0.094
5/16 0.324 0.298 0.719 0.688 0.176 0.156 0.145 0.125 0.551 0.531 0.135 0.125
3/8 0.388 0.360 0.844 0.782 0.208 0.188 0.161 0.141 0.645 0.625 0.151 0.141
7/16 0.452 0.421 0.969 0.907 0.239 0.219 0.192 0.172 0.739 0.719 0.182 0.172
1/2 0.515 0.483 1.094 1.032 0.270 0.250 0.208 0.188 0.833 0.813 0.198 0.188