M8x1.25 Rivet Nut Knurled Countersunk Head
The M8x1.25 Rivet Nut with Knurled Countersunk Head is designed for applications requiring a strong, vibration-resistant threaded insert in thin or soft materials. Its knurled body enhances grip within the base material, reducing the risk of spin-out under load, while the countersunk head allows for a flush finish, ideal for applications where surface profile matters. With a thread pitch of 1.25mm and compatibility with hole sizes around 11.1mm, this rivet nut is suitable for use in automotive panels, metal enclosures, furniture frames, and more.
If you’re looking for a durable, easy-to-install solution for blind fastening, the M8x1.25 knurled countersunk rivet nut is a smart choice.
Thread Size: M8 with a 1.25mm pitch, suitable for standard metric fasteners.
Material: Made from high-strength carbon steel, offering excellent mechanical durability and wear resistance.
Surface Treatment: Zinc-plated finish provides corrosion resistance in indoor and moderate outdoor environments.
Head Type: Countersunk head sits flush with the surface, ideal for applications where aesthetics or clearance is critical.
Body Style: Knurled round body enhances resistance to spinning during installation or use, especially in softer base materials.
Grip Range: Typically suitable for sheet materials ranging from 0.5mm to 3.0mm in thickness.
Hole Size: Requires a hole diameter of approximately 11.1mm for optimal fit and installation.
- MOQ: 50,000
Automotive Assembly: Ideal for installing threaded fasteners in body panels, brackets, and metal frames where high strength and a flush finish are required.
Sheet Metal Fabrication: Used extensively in enclosures, panels, and cabinets to provide strong internal threads in thin or soft materials.
Furniture and Fixtures: Provides durable threads in metal or composite structures for assembly and disassembly, especially in applications requiring a flush-mounted fastener.
Aerospace Components: Suitable for lightweight yet strong connections in aircraft interiors, where knurled bodies help resist spinning in softer alloys or composites.
Industrial Machinery: Ensures vibration-resistant, long-lasting fastening in control panels, housings, and machine guards that undergo frequent maintenance.
What does the “knurled” feature provide?
The knurled body of the rivet nut creates a textured surface that increases the grip within the host material, preventing any unwanted rotation during installation or in use. This feature is especially beneficial when installing into softer or thinner materials, such as aluminum, plastics, or composites, which might otherwise allow the rivet nut to spin under stress. The knurling helps to maintain a secure and firm hold, making it ideal for applications where mechanical stability is crucial.
What is the thread size and pitch of this rivet nut?
This rivet nut features an internal M8 thread size, with a 1.25mm pitch, which aligns with the standard size for M8 bolts and machine screws. This makes it suitable for a wide variety of fasteners in various mechanical and structural applications. The pitch (the distance between each thread) of 1.25mm ensures compatibility with most M8 fasteners commonly used in industrial, automotive, and construction sectors.
Does the countersunk head sit flush with the surface?
Yes, the countersunk head is designed to sit almost flush with the surface of the material after installation. This low-profile design ensures a smooth finish, minimizing any protrusion that could interfere with the surrounding environment. The countersunk shape also provides a neat, aesthetically pleasing result, often required in applications like electronics, automotive panels, and furniture where a flush finish is necessary.
What torque or load can it handle?
The M8x1.25 steel rivet nut can typically handle a torque resistance of up to 12–18 Nm depending on the material into which it is installed. For pull-out forces, it can withstand up to 4,000N or more depending on factors such as the material used (e.g., steel, aluminum) and the specific installation method. These specifications make the rivet nut suitable for use in structural applications, automotive parts, and heavy-duty machinery where high torque and load-bearing capacity are needed.
Is this rivet nut reusable?
While the rivet nut itself remains permanently installed in the material, the internal threads are reusable. This means that once the rivet nut is installed, you can continue to insert and remove bolts or screws, making it ideal for applications requiring frequent disassembly or adjustments. The reusable threads maintain their integrity even after multiple installations, making it an efficient and cost-effective choice for long-term use in machinery and automotive applications.
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