Open End vs Closed End Rivet Nuts: What’s the Difference?

Rivet nuts are widely used in sheet metal, automotive, machinery, and industrial applications to create strong threaded connections in thin materials. Among different types of rivet nuts, open-end rivet nuts and closed-end rivet nuts are two common options.

Although they look similar, the main difference is the bottom design, which affects their sealing performance and suitable applications. Choosing the right type can help improve fastening reliability and service life. As a professional rivet nut manufacturer, Xinchi is glad to introduce for you.

Rivet Nut

Open End Rivet Nut for General Fastening Applications

An open-end rivet nut is the most commonly used rivet nut type. It has an open bottom, allowing the bolt to pass through the entire insert after installation.

Because of its simple structure and easy installation, open-end rivet nuts are widely used in applications where sealing is not required. They are commonly found in sheet metal assembly, automotive components, machinery, and electrical equipment.

For most standard fastening applications, an open-end rivet nut provides a practical and cost-effective solution.

Open-End Rivet Nut

Closed-End Rivet Nut for Protected Connections

A closed-end rivet nut features a sealed bottom that prevents the bolt from passing through the insert. This design helps reduce the risk of moisture, dust, and debris entering the threaded connection.

Due to its protective design, closed-end rivet nuts are often used in automotive parts, outdoor equipment, and applications where better sealing performance is required.

Compared with open designs, a closed-end rivet nut offers additional protection in environments where the connection may be exposed to external elements.

Closed-End Rivet Nut

Open End Rivet Nut vs Closed End Rivet Nut: How to Choose

The choice between an open end rivet nut and a closed end rivet nut mainly depends on the working environment.

For general assembly and applications without sealing requirements, an open end rivet nut is usually the preferred option. When protection against moisture, dust, or contaminants is important, a closed end rivet nut may be a better choice.

Before selecting a rivet nut, factors such as material, thread size, installation thickness, and application conditions should also be considered.

Open End and Closed End Rivet Nuts

Xinchi Fastener Factory – Reliable Rivet Nut Manufacturer

Founded in 2007, Xinchi Fastener Factory is a professional fastener manufacturer with strong production capability and manufacturing experience.

Our factory is equipped with 102 cold heading machines and has a daily production capacity of more than 10 million pieces. The completed new factory covers 30,000 square meters, including two six-story buildings for production and quality management.

Xinchi Fastener Factory

With years of experience in fastener manufacturing, Xinchi Fastener Factory supplies high-quality rivet nuts and other fasteners, including nuts, screws, bolts, rivets, and washers. We are committed to providing stable production, reliable quality, and customized fastening solutions for global customers.