Projection Weld Nuts

Hexagonal Weld Nuts with Multiple Projections and Different Pilot Lengths

Hex weld nuts are used for attaching a threaded hole to parts that can only be accessed from one side. These nuts are welded on to the parent material and then used with screws and bolts to join materials mechanically. They are frequently used in the automotive industry. They allow thinner materials to be used that would typically be too thin to tap. Perfect for restoration projects.

Projection weld nuts are resistant to twisting and snapping from high torque applications. The projections on weld nuts melt into the host material during welding for a quick and enduring hold. Simultaneously, the pilot helps to ensure a precise installation and protects the threading from welding spatter during welding operations.

Hex Weld Nuts are available in plain steel or stainless steel with either a short or long pilot and either three projections or six projections. The greater number of projections, the stronger the hold of the welded joint. As a result, six projection weld nuts are intended for heavy-duty applications. Pilot lengths are dependant on the thickness of the base material.

Common Places Weld Nuts Are Used:

  • Automotive
  • Aerospace
  • Agriculture
  • Appliances
  • Gun Manufacturing
  • Marine Industry
  • Trailer Industry

FAQs

What are weld nuts used for?

Weld nuts are a special type of nut designed to be spot welded to another object. They come in many varieties, including projection weld nuts, retainer weld nuts, and round base weld nuts.

What is a projection weld nut?

Projection weld nuts are used for attaching a threaded hole to parts that can only be accessed from one side. This allows thinner materials to be used that would typically be too thin to tap. These nuts are welded on to the parent material and then used with screws and bolts to join materials mechanically. The projections on weld nuts melt into the host material during welding for a quick and enduring hold. Simultaneously, the pilot helps to ensure a precise installation and protects the threading from welding spatter during welding operations.

How do weld nuts work?

Weld nuts add threading to existing objects by being welded to them. While there are many kinds of weld nuts, they generally fall under two categories for how they are welded: spot welding and projection welding. In either case, weld nuts are designed to be easy to weld to the base material.

What is the difference between spot welding and projection welding?

Spot welding uses a pair of electrodes with pointed tips to heat and join pieces of metal. It is ideal for applications using carbon steel and in automation. Projection welding is very similar to spot welding, using heat generated by an electrical current to join metals. However, the electrodes used in projection welding carry more current than those used in spot welding, allowing thicker materials to be welded together. During the weld, the projections themselves absorb the heat and form the weld. It is ideal for joining metal components with embossments.

What are weld nuts made out of?

The vast bulk of weld nuts are made out of carbon steel or stainless steel due to the methods currently used to spot weld and projection weld materials together.