Carriage Bolt & Short Neck Carriage Bolt, Zinc Plated
                       
Measure Carriage Bolt length from the underhead bearing surface to the extreme end of the bolt.
 
           
  A H O P  
Size Max

Min

Max

Min

Max

Min

Max

Min

 
1/4-20 Short Neck

0.594

0.563

0.145

0.125

0.260

0.245

0.105

0.080

 
5/16-18 Short Neck

0.719

0.688

0.176

0.156

0.324

0.307

0.124

0.093

 
 3/8-16 Short Neck

0.844

0.782

0.208

0.188

0.388

0.368

0.150

0.125