Hex Bolts
 |
Size |
Body |
Width Across Flats |
Width Across Corners |
Head Height |
Thread Length |
1/4 |
.245 – .250 |
.428 – .438 |
.488 – .505 |
.150 – .163 |
.750 |
5/16 |
.3065 – .3125 |
.489 – .500 |
.557 – .577 |
.195 – .211 |
.875 |
3/8 |
.369 – .375 |
.551 – .562 |
.628 – .650 |
.226 – .243 |
1.00 |
7/16 |
.4305 – .4375 |
.612 – .625 |
.698 – .722 |
.272 – .291 |
1.125 |
1/2 |
.439 – .500 |
.736 – .750 |
.840 – .866 |
.302 – .323 |
1.25 |
9/16 |
.5545 – .5625 |
.798 – .812 |
.910 – .938 |
.348 – .371 |
1.375 |
5/8 |
.617 – .625 |
.922 – .938 |
1.051 – 1.083 |
.378 – .403 |
1.50 |
3/4 |
.741 – .750 |
1.100 – 1.125 |
1.254 – 1.299 |
.455 – .483 |
1.75 |
7/8 |
.866 – .875 |
1.285 – 1.312 |
1.465 – 1.516 |
.531 – .563 |
2.00 |
1″ |
.990 – 1.00 |
1.469 – 1.500 |
1.675 – 1.732 |
.591 – .627 |
2.25 |
1-1/4 |
1.239 – 1.250 |
1.812 – 1.875 |
2.066 – 2.165 |
.749 – .813 |
2.75 |
1-1/2 |
1.488 – 1.500 |
2.175 – 2.250 |
2.480 – 2.598 |
.902 – .974 |
3.25 |
Carriage Bolts
Carriage Bolts
 |
|
D |
A |
H |
O |
S |
Bolt Diameter |
Body Diameter |
Head Diameter |
Head Height |
Across Square |
Square Depth |
1/4 |
.237 – .260 |
.563 – .594 |
.125 – .145 |
.245 – .260 |
.125 – .156 |
5/16 |
.298 – .324 |
.688 – .719 |
.156 – .176 |
.307 – .324 |
.156 – .187 |
3/8 |
.360 – .388 |
.782 – .844 |
.188 – .208 |
.368 – .388 |
.188 – .219 |
7/16 |
.421 – .452 |
.907 – .969 |
.219 – .239 |
.431 – .452 |
.219 – .250 |
1/2 |
.483 – .515 |
1.032 – 1.094 |
.250 – .270 |
.492 – .515 |
.250 – .281 |
5/8 |
.605 – .642 |
1.219 – 1.344 |
.313 – .344 |
.616 – .642 |
.313 – .344 |
3/4 |
.729 – .768 |
1.469 – 1.594 |
.375 – .406 |
.741 – .768 |
.375 – .406 |
We are now a member of the North American Fence Contractors Association.