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Countersunk Head Round Body Rivet Nuts

Steady Industrial Fasteners Co., Ltd.

Steady Industrial Fasteners Co., Ltd. is and , specialized in producing Blind Fasteners, including Rivet Nuts, Rivets, Clinching Fasteners and Welding Studs. With more than 10 years experience in production and exporting, STEADY is a High & New technology enterprise founded in 2001.

Wtih ISO 9001:2009, TS16949 certified facilities in Zhejiang, China. We can manufacture 1.5 billion blind rivets that meet DIN7337, IFI and GB(chinese) standards annually, Plus 283 million pieces rivet nuts 120 million pieces of clinching fasteners annually, that most competitors can not simply compete.


a professional manufacturer of blind fasteners.

STEADY manufactures over thousands different type of blind rivet nuts in steel,aluminium and stainless steel, diameter from M3-M16 in metric and UNC #6-32 to UNC 1/2-13 in inch. High advantage in stainless steel blind rivets both for open and sealed type, mutigrip,monobolt and other structural rivets. We focus on "one stop shopping" and with advantage of large production capacity , consistent quality, competitive prices, punctual delivery and excellent serverices before and after sales, STEADY has become one of the leading blind fasteners manufacuture & supplier in Asia.

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Industry knowledge

How is the countersunk head of the round body rivet nut designed to interact with the mating surface?

The design of the countersunk head of a round body rivet nut is specifically crafted to interact with the mating surface in a way that ensures a flush and aesthetically pleasing finish. Here are the key aspects of this design:
The countersunk head is typically shaped with an angled or tapered profile, allowing it to sit flush or below the surface of the material into which it is installed. This design minimizes protrusion and provides a streamlined appearance.
Chamfer or Bevel:
The head often features a chamfer or bevel around its edge, creating a smooth transition between the head and the surrounding material. This chamfer helps prevent sharp edges, reducing the risk of snagging or interference with other components.
Conical Shape:
The countersunk head is often conical in shape, with the widest part at the top. This design facilitates easy insertion into a countersunk or conical hole in the mating surface, ensuring a secure and tight fit.
Flush Fit:
The primary objective is to achieve a flush fit, where the head is level with or slightly below the surface of the material. This flush finish is desirable for both functional and aesthetic reasons, especially in applications where surface smoothness is crucial.
Undercut or Relief Area:
Some countersunk heads may have an undercut or relief area beneath the surface to accommodate the body of the rivet nut. This feature allows for a secure and stable installation while maintaining a low-profile appearance.
Surface Friction and Grip:
The countersunk head is designed to create sufficient surface friction and grip within the countersunk hole. This ensures that the rivet nut remains firmly in place and resists movement or rotation during assembly and use.
Material Compatibility:
The design takes into consideration the type of material into which the rivet nut is installed, ensuring compatibility and promoting effective engagement for a reliable joint.
The interaction between the countersunk head and the mating surface is critical for achieving a secure and aesthetically pleasing fastening solution. Manufacturers provide specific guidelines and recommendations for the installation process to ensure that the countersunk head is properly seated, contributing to the overall effectiveness of the round body rivet nut.

Are there specific recommendations for use countersunk head of the round body rivet nut in harsh environments?

While specific recommendations may vary based on the material and coating of the countersunk head round body rivet nut, there are general considerations for using fasteners, including rivet nuts, in harsh environments. Here are some guidelines:
Corrosion-Resistant Materials:
Choose countersunk head round body rivet nuts made from materials with inherent corrosion resistance, such as stainless steel or aluminum. These materials are less prone to rust and degradation in corrosive environments.
Protective Coatings:
Opt for rivet nuts with protective coatings, such as zinc plating or other corrosion-resistant finishes. These coatings provide an additional layer of protection against harsh environmental elements.
Environmental Sealing:
In environments with exposure to moisture, chemicals, or other corrosive substances, consider using countersunk head rivet nuts that feature environmental sealing. This may involve using seals, gaskets, or coatings to prevent the ingress of harmful elements.
Material Compatibility:
Ensure that the material of the countersunk head rivet nut is compatible with the materials it will come into contact with in the harsh environment. Chemical reactions between dissimilar materials can accelerate corrosion.
Temperature Resistance:
Verify that the countersunk head round body rivet nut can withstand the temperature extremes present in the harsh environment. Some applications may involve high temperatures, and selecting a heat-resistant material is crucial.
Regular Inspection and Maintenance:
Periodically inspect the fasteners and the overall assembly in harsh environments. Regular maintenance can help identify and address any signs of corrosion or wear, ensuring the continued integrity of the joint.
Consult Manufacturer Guidelines:
Refer to the manufacturer's guidelines and recommendations for specific details on the intended use of the countersunk head round body rivet nut in different environmental conditions. Manufacturers often provide valuable information on material specifications, coatings, and recommended applications.
Consider Environmental Factors:
Assess the specific environmental factors in the application, such as exposure to saltwater, chemicals, or abrasive substances. Tailor the selection of countersunk head rivet nuts based on the unique challenges posed by the environment.