How do I identify an A325 bolt?

All A325 type 1 bolts are simply marked with “A325” and the manufacturer’s logo. The exceptions are as follows: A325 type 3 weathering steel bolts are underlined (A325). Fully threaded A325 structural bolts are designated with a “T” (A325T).

What size is A325 bolt?

ASTM A325 structural bolts are designed for steel to steel connections….Available Sizes.

Diameters Allowed: 1/2″ – 1-1/2″
Available Lengths: Up to 6″ – 10″ maximum (depending on diameter)
Available Finish: Plain Finish or Hot Dip Galvanized
Origin: Import or Domestic

Is A325 bolt stronger than Grade 8?

Strength Differences A325 bolts are typically manufactured from a medium carbon steel (although they can be made from an alloy) while SAE grade 8 bolts are made from a medium carbon alloy steel. Grade 8 bolts are significantly stronger than an A325.

What do the letters on top of bolts mean?

You can usually figure out the grade, or strength, of a bolt by looking at the markings on its head. English bolts (U.S.S. or S.A.E) are categorized by grade, from grade 2 to grade 8, where the grade represents inch strength. The higher the grade, the stronger the bolt.

Is A325 a high strength bolt?

F3125 Grade A325 Bolts A325 bolts have a minimum tensile strength of 120,000 PSI for one inch or less diameters and 105,000 PSI for over one inch. This makes them weaker than A490, certain jobs do not require a structural bolt as strong as Grade A490.

Are A325 bolts high strength?

ASTM A325 covers high strength structural bolts used in structural steel connections. A325s have a heavy hex head, a full body diameter, and are normally short in overall length since they are connecting steel to steel.

What nuts go with A325 bolts?

The recommended grade of nut for an ASTM A325 structural bolt is ASTM A563 Grade D, DH, or C. ASTM A194 2H is also an acceptable substitute. These ASTM grades are all high strength and go through a heat treating process required to develop their mechanical characteristics.