Model NO.: JX18B028
Application: Steel Structure
Finish: Black
Tensile Strength: >825MPa
Other Available Finish: HDG, Galvanized, Dacromet, Ect.
Trademark: HYZ or OEM
Transport Package: Carton and Wooden Pallet
Specification: 1/2"~1-1/2"
Origin: Hangzhou, China
HS Code: 7318
ASTM A325 TYPE 1 Heavy Hex Head Bolt with Nut and WasherProduct Name | High Strength Hexagon Head Bolt |
Standard | ASTM A325 |
Grade | TYPE 1 Grade 8.8 |
Diameter | 1/2"~1-1/2" |
Length | 1-1/2"~12" |
Materials | Carbon Steel – 45# | Alloy Steel – 40Cr / 35VB / 35CrMo / 42CrMo |
Available Finish | Dacromet, Black Oxide, Phosphating, Electro-Galvanized, etc. |
Bolt Set | Set = 1 Bolt + 1 Nut (DH or 2H) + 2 Washers (F436) |
Head Marking | HYZ + A325 or Customer’s Brand + A325 |
Packing | Carton & Wooden Pallet or Wooden Case; Barrel + Wooden Pallet |
Certification | FPC BC1, SGS, BV, ISO, Factory Testing Report |
Class of Bolt, Nut and Washer
Components | Bolt | Nut | Washer |
Class | 8.8 | DH | F436 |
8.8 | 2H | F436 |
Properties | Yield Strength (PSI / MPa) Min |
Tensile Strength (PSI / MPa) Min |
Elongation (%) |
Reduction of Area (%) |
1/2"~1" incl. | 92,000 (635) | 120,000 (825) | ≥ 14 | ≥ 35 |
1~1-1/2" | 81,000 (560) | 105,000 (725) | ≥ 14 | ≥ 35 |


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Core Products
We specialize in manufacturing high-strength tension control bolts, heavy hex head bolts, and shear studs for steel structures. All products are manufactured according to international standards or customer drawings. For more details, feel free to contact us for a detailed quotation. Each batch of goods is accompanied by a 3.1 certificate or third-party inspection report to ensure quality and compliance.
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