We are pleased to announce that one of our long-term clients has placed a repeat order for some of ASTM F3125 Grade A325 heavy hex bolts. This order includes various sizes with 3/8″ UNC thread and lengths of 3/4″, 1 1/4″, 1 1/2″, and 2 inches. The hot-dip galvanized coating provides excellent corrosion resistance, making them widely used in steel construction and infrastructure projects.

We are a professional manufacturer specializing in a wide range of pipe fittings and bolts. Our products are available in various materials and specifications to meet the needs of different industrial applications. Our products are manufactured with strict quality control and meet international standards. If you need custom fasteners or standard bolts that meet ASTM, DIN, or ISO specifications, feel free to contact us. We welcome cooperation with clients from around the world.

Product Descriptions

ASTM F3125 Grade A325 Heavy Hex Bolts Chemical Composition

Carbon: 0.30 – 0.52
Manganese: 0.60 min
Phosphorus: 0.035 max
Sulfur: 0.040 max
Silicon: 0.15 – 0.30
Boron: 0.003 max
Copper: Not Specified
Nickel: Not Specified
Chromium: Not Specified
Vanadium: Not Specified
Molybdenum: Not Specified
Titanium: Not Specified

ASTM F3125 Grade A325 Heavy Hex Bolts Mechanical Property

Grade: 120 ksi (A325/F1852)
Tensile Strength: 120 min ksi
Yield Strength: 92 ksi min
Elongation (min): 14%
Reduction of Area: 35% min

ASTM F3125 A325 Heavy Hex Bolts Inspection

According to the ASTM F3125 A325 standard, both the thread length and head diameter were measured and found to be within the specified tolerances. All these heavy hex bolts have successfully passed quality inspection and are qualified for delivery.

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