Welded Screws

What is a welded screw

Welding screws are specialized fastening elements that are securely connected to metal surfaces by welding. Unlike classic bolts or screws, these screws do not require drilling holes, which significantly speeds up installation and reduces the risk of weakening the structure. Thanks to this, welding fasteners are increasingly used in the industrial and construction sectors, mechanical engineering, and the production of furniture and appliances.

Design features of welding screws

The design of hardware provides for the presence of a contact platform (flange) through which electric current is transmitted during welding. The main part of the screw is threaded - fully or partially, depending on the needs of the user.

Materials of manufacture — stainless steel, carbon steel, aluminum. For increased wear resistance, some models have an additional coating - galvanizing or phosphating. This treatment protects screws from corrosion and aggressive environments.

Some screws are supplied with elements for precise positioning or isolation. This is important when installing electrical parts where an additional protective environment is required. Models with a welded sleeve are also common - they allow you to create a threaded connection on thin metals without loss of rigidity.

Another type is a press screw, which is not welded, but is installed under pressure in a pre-prepared hole. Both types, both press-fit and welded, are often used together in complex structures.

Types of welding screws

Among the main standards by which screws are manufactured, the most common are:
ISO 13918-PT — standard for welding screws with a full thread;
ISO 13918-IT — ideal for medium loads;
AN 357 — an American standard used in heavy engineering.

 

Use of welding screws

Or screws are widely used in the following industries: Automotive and railway industry; Metal structures and frames; Production of panel equipment; Installation of ventilation systems; Assembly of furniture, metal decor; Electrical equipment.
The main advantage is the ability to create a strong connection without drilling, which preserves the integrity of the metal. Also, these products can withstand high mechanical loads, vibrations and temperature changes.

Such a screw has a smooth base or a special contact surface that provides an effective connection during welding. This allows you to create a hermetic, strong fastening even on thin or deformed parts, which is especially important in responsible structures.

Modern welding technologies (arc, condenser, contact) make it possible to use welding screws that can be purchased for any conditions and materials — from steel to aluminum.

Advantages of buying in Denmark

1️⃣ Huge selection of fasteners: A unique opportunity to find all necessary fasteners in one place - the largest assortment in Ukraine.
2️⃣ Flexible pricing policy: The more you buy, the lower the price you will get, providing favorable conditions for large orders.
3️⃣ Additional discount: When making a purchase on the website, you automatically receive an additional -2% discount on the entire range.
4️⃣ Fast delivery: Enjoy fast delivery of goods both from the warehouse and to order, ensuring the speed and convenience of receiving purchases.
5️⃣ Expert support: Our team of experts is always ready to help you choose the right mount, guaranteeing professional advice and support.

Experience even more benefits by cooperating with DINMARK - your reliable partner in the field of fasteners!

Questions and answers

Which welding screws are the best?

The best ones are those that fully meet the operating conditions. If you need a connection for high loads, choose models made of carbon steel with a coating. For decorative work or medium loads, aluminum or stainless options are suitable. ISO 13918 standards ensure conformity of geometry, threads and strength, which is especially important in technical projects.

Prices for welding screws

Prices for welding screws will depend on the material of manufacture, size and standard. The choice of a specific screw is usually determined by the requirements for its strength and durability. Additional coatings, such as galvanizing or phosphating, can also affect the cost of products. For large orders, favorable discounts are available, which allows you to save significantly.

Assortment of welding screws

You will find welding screws for various tasks and operating conditions. We offer models in carbon steel, stainless steel and aluminum, as well as options with additional coatings for increased wear resistance. Each product meets international quality standards and is available in different sizes for ease of selection. The assortment of screws allows you to choose the optimal solution for any task — from light decorative structures to welding parts in carriage construction. 

What welding screws should be bought in 2025?

In 2025, ISO 13918-PT and ISO 13918-IT screws will remain the most popular. They have a wide range of applications and are made of corrosion-resistant materials. If you are planning projects outdoors or in an aggressive environment, choose hardware with an additional anti-corrosion coating.