Carriage Bolts are designed to keep the bolt from turning when a nut is tightened. The Short Necked type is used in sheet metal where a standard size neck would create an obstruction.
Basic Bolt
Diameter |
E |
A |
H |
0 |
P |
Body
Diameter |
Head
Diameter |
Head
Height |
Square
Width |
Square
Depth |
| Max. |
Min. |
Max. |
Min. |
Max. |
Min. |
Max. |
Min. |
Max. |
Min. |
10 0.1900
1/4 0.2500
5/16 0.3125
3/8 0.3750 |
0.199
0.260
0.324
0.388 |
0.182
0.237
0.298
0.360 |
0.469
0.594
0.719
0.844 |
0.438
0.563
0.688
0.782 |
0.114
0.145
0.176
0.208 |
0.094
0.125
0.156
0.188 |
0.199
0.260
0.324
0.388 |
0.185
0.245
0.307
0.368 |
0.125
0.156
0.187
0.219 |
0.094
0.125
0.156
0.188 |
7/16 0.4375
1/2 0.5000
5/8 0.6250
3/4 0.7500 |
0.452
0.515
0.642
0.768 |
0.421
0.483
0.605
0.729 |
0.969
1.094
1.344
1.594 |
0.907
1.032
1.219
1.469 |
0.239
0.270
0.344
0.406 |
0.219
0.250
0.313
0.375 |
0.452
0.515
0.642
0.768 |
0.431
0.492
0.616
0.741 |
0.250
0.281
0.344
0.406 |
0.219
0.250
0.313
0.375 |
