Threaded Rods And Nuts

What is a Threaded Rod?

A threaded rod, also known as a purlin tie rod, double-end stud, or anchor rod, is a cylindrical steel bar threaded at both ends while the middle section remains smooth. The most common size used is M12 (D12), and it plays a crucial role in structural applications, particularly in pre-engineered steel buildings and industrial workshops.

Double-end threaded rods ensure the stability of structural components by connecting and securing various parts together, such as couplers, expansion anchors, and nuts.

 

 

Strength Grades

Quang Thai threaded rods are manufactured with strength grades of 4.6, 5.6, 6.6, 8.8, 10.9, and even 12.9, using high-quality materials such as:

• Carbon Steel: C45, S45C
• Alloy Steel: SCM430, SCM440
• Stainless Steel: A2-70, A4-70, SUS 304, SUS 316

Matching Nuts and Washers

The accompanying nuts and washers vary based on standard requirements and rod sizes:

• ASTM Standards: ASTM A563/A194 nuts, ASTM F436/F844 washers
• DIN Standards: DIN 934 nuts, DIN 125 washers
• ISO Standards: ISO 4032 nuts, ISO 7089 washers

Surface Treatments

Quang Thai provides various surface finishing options to enhance durability and corrosion resistance:

• Black oxide coating
• Hot-dip galvanizing
• Electro-galvanizing
• Geomet and Dacromet coating
• PTFE coating

 

 

Due to their versatility and ease of installation, threaded rods are widely used in steel construction. They play a critical role in reinforcing structures, ensuring stability, and supporting load-bearing components. Their primary applications include:

✔ Roof and column bracing – Strengthening steel structures in factories and pre-engineered buildings
✔ Load distribution – Supporting structural components under compression, such as columns and trusses
✔ Wind and lateral force resistance – Absorbing forces acting perpendicular to the building framework
✔ Safety and reliability – Enhancing construction efficiency and long-term stability

 

The price of a threaded rod depends on several factors:

• Standard compliance: Different production standards result in varying mechanical properties and pricing
• Strength grade: Higher strength grades come at a higher cost (e.g., 8.8 > 6.6 > 4.6)
• Size: Larger diameters and longer rods cost more (e.g., M12 > M10, M12x120 > M12x100)
• Material ion: Prices fluctuate based on the type of steel used
• Surface treatment: Coating options affect pricing (e.g., hot-dip galvanizing is more expensive than electro-galvanizing)

 

Quang Thai is a leading manufacturer and supplier of high-quality threaded rods in Southern Vietnam. Our products are known for superior strength, precision engineering, and competitive pricing. With a commitment to quality, we ensure that our fasteners meet stringent industry standards and deliver long-lasting performance.

For bulk orders or customized specifications, contact us at +84 933 220 468. We look forward to serving you!