Browse Categories

Higher quantity
have the
price per piece

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.

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"
Shopping Cart
Your cart is empty.
Orders over $1000
ship for free to
the cont. U.S.