Description
Product Overview
The SW ANDERSON Helical Insert 304SS is engineered to meet the demanding requirements of modern manufacturing, maintenance, and repair environments. Constructed from high‑grade 304 stainless steel, this insert offers exceptional corrosion resistance, ensuring long‑term performance even in harsh, moisture‑laden conditions. Its M8x1.25 thread size aligns with standard metric specifications, providing a seamless replacement for worn or stripped threads in a variety of substrates, including metal, plastic, and engineered wood.
Designed with a universal fit concept, the insert can be installed in pre‑drilled holes ranging from 6.8 mm to 7.0 mm in diameter, making it adaptable to a broad spectrum of applications without the need for specialized tooling. The PK12 designation indicates a compact profile that maximizes strength while minimizing material usage, delivering a high strength‑to‑weight ratio that is essential for weight‑sensitive assemblies.
Each package contains a single insert measured at 2.6 × 2.5 × 0.7 inches and weighing only 0.63 ounces, allowing for easy handling and storage. The product has been in the market since July 2004 and maintains a solid reputation, reflected in its #16 ranking within the Helical Threaded Inserts category on major e‑commerce platforms.
![[Product front view showing all components]](https://www.primenets.store/wp-content/uploads/2026/08/5c288203a5f443aba4b1ce3b6aa909b5.jpg)
Usage
These helical inserts excel in environments where reliable, repeatable fastening is critical. In industrial settings, they are commonly used to reinforce threaded holes in machinery frames, pump housings, and equipment panels, where vibration and cyclic loading can otherwise cause thread degradation. Their stainless‑steel composition makes them suitable for food‑processing equipment, medical devices, and marine applications where exposure to corrosive agents is routine.
For automotive technicians, the insert provides a dependable solution for repairing stripped engine block threads, transmission housings, and chassis components. The universal fit design simplifies installation, allowing mechanics to restore original thread integrity without extensive machining or the need for proprietary parts.
DIY enthusiasts also benefit from the insert’s ease of use. Whether assembling a custom metal furniture piece, repairing a plastic enclosure, or building a prototype, the SW ANDERSON Helical Insert delivers a professional‑grade result with minimal effort. Its compact size ensures it can be used in confined spaces where larger fasteners would be impractical.
Why Choose Us
Choosing the SW ANDERSON Helical Insert means selecting a product backed by decades of engineering expertise and a commitment to quality. Each insert undergoes rigorous testing to verify dimensional accuracy, tensile strength, and corrosion resistance, guaranteeing that the performance specifications meet or exceed industry standards.
Our manufacturing process incorporates precision winding techniques that create a tightly interlocked helical coil, delivering superior load distribution across the inserted threads. This design minimizes the risk of thread stripping under high torque conditions, extending the service life of the fastened assembly.
In addition to product durability, we provide responsive customer support and a clear return policy. Should you encounter any issues during installation or have questions about compatibility, our technical team is available to assist, ensuring that you achieve optimal results with confidence.
Key Features
- Corrosion‑resistant 304 stainless steel construction for long‑lasting durability.
- Universal fit design accommodates a range of hole diameters, reducing the need for multiple part numbers.
- Compact PK12 profile provides high strength while minimizing material usage.
- Easy installation with standard tools, saving time and labor in both professional and DIY projects.
- Dedicated technical support and hassle‑free return policy for peace of mind.
FAQ
What materials can the insert be used with?
The insert is compatible with metal, engineered wood, and most engineering plastics. Its stainless‑steel composition ensures a secure thread in both hard and softer substrates, provided the hole is properly prepared.
Do I need special tools to install the insert?
No special tools are required. A standard tap set matching the M8x1.25 thread size and a suitable driver or wrench are sufficient for installation. The universal fit design simplifies the process, allowing for quick and reliable installation.
Is the insert reusable after removal?
While the insert is designed for permanent installation, it can be removed with care using a proper extraction tool. However, re‑installation may affect the integrity of the threads, so it is recommended to use a new insert for critical applications.
How does the PK12 designation affect performance?
PK12 indicates a compact, high‑strength profile. This design maximizes the load‑bearing capacity of the insert while keeping its overall size small, making it ideal for applications where space is limited but strength is essential.
What warranty does SW ANDERSON offer?
SW ANDERSON provides a limited warranty covering manufacturing defects for a period of one year from the date of purchase. Contact our support team for warranty claims and further assistance.




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