Heavy-Duty Design
Larger head dimensions and thicker body structure provide higher load capacity and improved durability for demanding fastening applications.
ASME/ANSI B 18.2.1-3 Heavy Hex Bolts
- Standard: ASME/ANSI B 18.2.1-3
- Material: Stainless Steel
- Thread Size: 3/8 – 3
- Surface Treatment: Plain, Zinc Plated
- Min Order: 5000pcs
- Sample: Free sample (after quote)
- Delivery time: 30 – 45 Days
Product Overview
Product Application
ASME B18.2.1 (Table 3) Heavy Hex Bolts are inch-series hex head fasteners designed with a larger head size and heavier dimensions than standard hex bolts. Manufactured according to ASME B18.2.1 dimensional requirements, these bolts provide increased bearing surface, improved torque capacity, and reliable clamping performance for heavy-duty applications.
With a robust hexagonal head and a full range of inch sizes, Heavy Hex Bolts are widely used in structural steel, industrial equipment, construction projects, and heavy machinery where high-strength fastening and long-term reliability are required.
Draw
Specification
Difference between Heavy Hex Bolt vs Standard Hex Bolt
Head Design
Heavy Hex Bolts have larger and thicker heads, providing better wrench engagement and higher torque capacity than standard hex bolts.
Load Capacity
The heavy-duty structure offers improved strength and load distribution for demanding applications.
Application
Heavy Hex Bolts are preferred for structural steel, machinery, and heavy equipment, while standard hex bolts suit general fastening needs.
Product Advantages
High Torque Performance
The enlarged hex head offers better wrench engagement, allowing higher tightening torque and more reliable clamping force.
Versatile Applications
Available in various materials, grades, and finishes for structural, industrial, and heavy equipment applications.
Common Questions
What is an ASME B18.2.1 Heavy Hex Bolt?
An ASME B18.2.1 Heavy Hex Bolt is an inch-series hex head bolt manufactured according to ASME dimensional requirements. It features a larger head size and heavier construction compared with standard hex bolts.
What applications use ASME B18.2.1 Heavy Hex Bolts?
They are commonly used in steel structures, heavy machinery, industrial equipment, construction projects, energy facilities, and other applications requiring reliable high-load fastening.
Are ASME B18.2.1 Heavy Hex Bolts high strength?
ASME B18.2.1 specifies bolt dimensions rather than strength grades. The final mechanical performance depends on the selected material and grade, such as alloy steel Grade 8 or other specified grades.
Can you provide OEM packaging and customized marking?
Yes. Customized materials, finishes, packaging, and OEM specifications can be provided according to customer requirements.
