Blind rivet nut | Small countersunk head | A2

Do you need a blind rivet nut that creates a strong, threaded connection without requiring access from both sides? The stainless steel A2 (AISI 304) blind rivet nut WS 9314 is an efficient solution for fastening in thin sheet metal, profiles, and other hard-to-reach materials. The small countersunk head provides a low-profile and discreet installation where a nearly flush surface is desired, without compromising the strength of the fastening.

The nut is designed for installation with blind rivet tools and is excellent for situations where traditional tapping is not possible. Manufactured in A2 stainless steel, it has very good corrosion resistance and provides long-lasting performance even in damp or exposed environments.

APPLICATIONS

Ideal for thin-walled structures, sheet metal materials, frames, enclosures, furniture, and vehicles. Common in the automotive industry, furniture production, construction, and electrical cabinet manufacturing. The blind rivet nut creates a vibration-resistant and durable thread, without the need for welding or access from the back. Easy to install with standard tools and provides a clean and low-profile fastening.

Watch video: Which blind rivet nut should you choose? Cylinder, countersunk, or half-hex

TECHNICAL SPECIFICATIONS

Product type: Blind rivet nut
Standard: WS 9314
Grade: A2 / AISI 304 stainless steel
Material class: A2
Thread type: Metric
Head type: Small countersunk head
Surface finish: Untreated (natural stainless steel)

FREQUENTLY ASKED QUESTIONS (FAQ)

What is the advantage of a small countersunk head (WS 9314) compared to a cylindrical head?

WS 9314 specifies blind rivet nuts with an extra small, thin countersunk collar (micro countersunk head):

• Low-profile and discreet: The thin collar adds minimal height above the sheet surface. You get an almost perfectly flush finish without needing to countersink the hole, which is ideal when connecting parts need to lie flat against the substrate.

• Reduced assembly work: Unlike standard countersunk rivet nuts (which require a 90-degree beveling of the hole edge), the WS 9314 can be installed directly into a straight drilled or punched hole.

• Sleek aesthetics: Provides a clean and seamless look on visible metal surfaces and profiles, while maintaining full thread strength.

Why is A2 stainless steel (AISI 304) the best choice for threaded rivet joints?

Creating threads in thin-walled materials places high demands on both mechanical strength and corrosion protection:

• Strong threads that do not wear out: A2 steel (1.4301 / AISI 304) is significantly stronger than aluminum and brass, which means the machine thread can withstand high tightening torques and repeated screwing and unscrewing.

• Permanent rust protection: Withstands outdoor environments, moisture, and industrial atmospheres without rusting or corroding around the drilled hole.

• Maintained clamping force: Stainless steel does not suffer from material creep, which ensures that the rivet nut remains firmly in place without loosening over time.

What should you consider regarding hole preparation and tools during installation?

1. Correct drill diameter: Drill the hole exactly according to the specified size for the thread. Oversized holes can cause the rivet nut to spin when the screw is tightened.

2. Check the grip range: Ensure that the thickness of your sheet metal or profile falls within the rivet nut's approved grip range so that the deformation bulge on the back locks correctly.

3. Use a powerful rivet nut tool: Because A2 stainless steel has high hardness, a manual lever tool, ratchet tool, or a pneumatic/battery-powered rivet nut tool adapted for stainless steel rivets is required.