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Hot-Dip Galvanized A325 Heavy Hex Bolts

The Hot-Dip Galvanized A325 Heavy Hex Bolt is a high-strength structural bolt that conforms to the ASTM A325 standard. These bolts are widely used in steel structure connections in buildings and bridges. The hot-dip galvanizing process ensures superior corrosion resistance, making them suitable for long-term use in outdoor or harsh environments. The heavy hex head design provides maximum strength to withstand high tensile and shear forces, making it ideal for structural connections requiring high-strength fastening solutions.

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Key Features

ASTM A325 Standard: Ensures the bolt's high strength and consistent mechanical performance for use in construction and industrial applications.

Heavy Hex Head Design: Provides greater torque and strength for secure and reliable connections.

Hot-Dip Galvanizing: Exceptional corrosion resistance for outdoor or wet conditions, extending the bolt's service life.

High-Strength Structural Bolt: Suitable for steel structure connections that demand high tensile and shear load capacity.

Specifications Table

Parameter	Description
Standard	ASTM A325
Material	Medium Carbon Steel, Alloy Steel
Diameter Range	1/2" - 1-1/2"
Length Range	1" - 12"
Surface Treatment	Hot-Dip Galvanized
Tensile Strength	≥ 120,000 psi
Applications	Steel Structures, Bridges, Building Structures, Industrial Equipment

Applications

Steel Structure Construction,Bridge Construction,Heavy Machinery Installation,Industrial Steel Structure Projects

Product Standards

Thread Specifications
Thread Size (d)	ds Max	ds Min	s Nominal	s Max	s Min	e Max	e Min	k Nominal	k Max	k Min	b Reference
1/2	0.515	0.482	7/8	0.875	0.85	1.01	0.969	5/16	0.323	0.302	1
5/8	0.642	0.605	1-1/16	1.062	1.031	1.227	1.175	25/64	0.403	0.378	1.25
3/4	0.768	0.729	1-1/4	1.25	1.212	1.443	1.383	15/32	0.483	0.455	1.38
7/8	0.895	0.852	1-7/16	1.438	1.394	1.66	1.589	35/64	0.563	0.531	1.5
1	1.022	0.976	1-5/8	1.625	1.575	1.876	1.796	39/64	0.627	0.591	1.75
1-1/8	1.149	1.098	1-13/16	1.812	1.756	2.093	2.002	11/16	0.718	0.658	2
1-1/4	1.277	1.223	2	2	1.938	2.309	2.209	25/32	0.813	0.749	2
1-3/8	1.404	1.345	2-3/16	2.188	2.119	2.526	2.416	27/32	0.878	0.81	2.25
1-1/2	1.531	1.47	2-3/8	2.375	2.3	2.742	2.622	15/16	0.974	0.902	2.25

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