DIN EN 14399-4 Bolts

1. What is DIN EN 14399-4?

DIN EN 14399-4, also known as EN 14399-4, is a European standard for high-strength structural bolts in the HV system. These bolts are designed for applications requiring high load capacity and durability. At Quang Thái, we manufacture DIN EN 14399-4 bolts with diameters ranging from M12 to M56, ensuring compliance with the international ISO standard for strength class 10.9.

 

 

 

DIN EN 14399-4 bolts are manufactured according to the specifications outlined in DIN EN 14399-4:2015, which defines high-strength hexagonal structural bolts in the HV system.

Surface Treatment

Quang Thai offers various surface treatment options for DIN EN 14399-4 bolts, including:

• Hot-dip galvanization
• Electro-galvanization (white-blue, gray, yellow chromate)
• Dacromet and Geomet coating
• Black oxidation

However, since DIN EN 14399-4 bolts belong to the 10.9 strength class, hot-dip and electro-galvanization are generally not recommended due to hydrogen embrittlement risks. This can compromise the toughness of steel and lead to cracking. As a result, Geomet, Dacromet, or black oxidation coatings are the preferred choices for these bolts.

3. Applications of DIN EN 14399-4 Bolts

Due to their high load-bearing capacity and strength, DIN EN 14399-4 bolts are widely used in:

• Bridge and highway construction
• Steel structures, including factories and industrial zones
• Pipeline installations in the oil and gas industry
• Ports, harbors, and shipbuilding
• Electrical equipment assembly and installations

4. Pricing of DIN EN 14399-4 Bolts

The price of DIN EN 14399-4 bolts depends on several factors:

• Type: The standard covers different types of structural bolts and nuts, each with varying costs.
• Material: The raw materials used in production impact pricing.
• Size: Larger bolts have higher costs. For instance, an M42 bolt is more expensive than an M39 bolt, and an M20x120 bolt costs more than an M20x100 bolt.
• Surface Treatment: Different coatings come with different price points. For example, hot-dip galvanization is more expensive than electro-galvanization.

5. Why Choose DIN EN 14399-4 Bolts from Quang Thai?

At Quang Thai, we take pride in being a leading manufacturer of DIN EN 14399-4 bolts in Vietnam. Our production facility ensures high-quality standards at competitive prices, prioritizing reliability and durability in every product we deliver.

For the best quality bolts, contact us today at +84 933 220 468. Quang Thai is honored to serve you!