Is A325 a high strength bolt?

A325 Structural Bolts 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 does A325 mean on a bolt?

heavy hex structural bolts
ASTM A325 is an ASTM International standard for heavy hex structural bolts, titled Standard Specification for Structural Bolts, Steel, Heat Treated, 120/105 ksi Minimum Tensile Strength. It defines mechanical properties for bolts that range from 1⁄2 to 11⁄2 inches (13 to 38 mm) in diameter.

How are A325 bolts measured?

The length of the bolt would need to be (3/8″ X 2) + 1 5/32″ = 1.90625″ rounding up on the size (increment by 1/4″ inch) would give us 3/4″ X 2″ A325 Structural Bolts.

What is hex nut grade?

Hex nuts (also referred to as finished hex nuts) are available in ASTM A563-A and compatible with low carbon steel bolts such as ASTM A307, ASTM F1554 grade 36, SAE grade 2, and AASHTO M183. SAE grade 5 and grade 8 nuts are also available in a finished pattern.

What is a heavy hex nut?

Heavy Hex Nuts. Heavy Hex Nuts are washer faced, are slightly larger and thicker than standard hex nuts. The heavy hex pattern is typically used for large diameter and high strength bolts.

What are the dimensions of a heavy hex nut?

Left-hand threaded heavy hex nuts are also available— see Left Hand Nuts. Heavy hex nut size refers to its nominal thread diameter. Typically, sizes range from 1/4″ to about 3 1/2″. Size is specified in inches, usually fractional rather than decimal. Table 1 lists width across flats and across corners, and thickness.

What is a structural steel bolt?

Structural Bolts. Structural Bolts are designed for the connection of structural members. These bolts are of high tensile strength and are used in conjunction with high strength nuts and hardened steel washers in structural steelwork.