A325 A490 Heavy Hex Structural Bolt

A325 A490 Heavy Hex Structural Bolt DIMENSION: ASME B18.2.6, ASME B18.2.3.7M

DIA.:1/2”-1.1/2”, M12~M36

LENGTH:1.1/4”-12”,30mm-300mm

MATERIAL/GRADE:ASTM A325/A325M, A490/A490M

DIMENSION: ASME B18.2.6, ASME B18.2.3.7M

FINISH: AVAILABLE IN VARIOUS FINISH

 

ScopeThe ASTM A325 specification covers high strength heavy hex structural bolts from ½” diameter through 1-1/2” diameter. These bolts are intended for use in structural connections and therefore have shorter thread lengths than standard hex bolts. Refer to the Structural Bolts page of our site for thread lengths and other related dimensions.This specification is applicable to heavy hex structural bolts only. For bolts of other configurations and thread lengths with similar mechanical properties, see Specification A 449.Bolts for general applications, including anchor bolts, are covered by Specification A 449. Also refer to Specification A 449 for quenched and tempered steel bolts and studs with diameters greater than 1-1/2" but with similar mechanical properties.Types

TYPE 1	Medium carbon, carbon boron, or medium carbon alloy steel.
TYPE 2	Withdrawn November 1991.
TYPE 3	Weathering steel.
T	Fully threaded A325. (Restricted to 4 times the diameter in length)
M	Metric A325.

Connection TypesMechanical Properties

Size	Tensile, ksi	Yield, ksi	Elong. %, min	RA %, min
1/2 - 1	120 min	92 min	14	35
1-1/8 - 1-1/2	105 min	81 min	14	35

Recommended Nuts and Washers

Nuts			Washers
Type 1		Type 3	Type 1	Type 3
Plain	Galvanized	Plain
A563C, C3, D, DH, DH3	A563DH	A563C3, DH3	F436-1	F436-3
Note: Nuts conforming to A194 Grade 2H are a suitable substitute for use with A325 heavy hex structural bolts.

A325 A490 Heavy Hex Structural Bolt