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Home > A325 Structural Bolt Information
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 A325 Structural Bolts
- Structural Bolts have an over sized hex head and are designed for steel to steel structural connections.
- Structural Bolts have shorter thread lengths than standard bolts. This allows a joint to be bolted without having threads in the joint. Length measurement requirements should be as exact as possible to provide enough room to fit a nut and washer and to be able to tighten all the way.
- A325 Structural Bolts are comparable in strength to Grade 5 bolts.
- Structural Bolts are available in Hot Dipped Galvanized and Plain Finish.
- Structural Bolts are typically only available in larger diameters and shorter lengths.
- Many sizes of USA made Structural Bolts are available with matching Nuts and Washers.
- The true length of many bolts can commonly be up to 3/16" short of the stated length.
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Structural Bolt diameter is the width of the shaft or the outside of the threads. |
| Structural Bolt length is measured from the underside of the head to the end of the bolt. |
| Bolt Diameter |
Head Size |
| 1/2" |
7/8" |
| 5/8" |
1 1/16" |
| 3/4" |
1 1/4" |
| 7/8" |
1 7/16" |
| 1" |
1 5/8" |
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