Anchoring system for facade panels Keep-Nut®
Anchoring System for Façade Panels – Keep-Nut®
Self-Anchoring Threaded Insert for Stone, Composite & Solid Surface Panels
Fast Installation • Adhesive-Free • High Performance
What is the Keep-Nut® Insert?
The Keep-Nut® is a press-in threaded insert that provides permanent female threads in panels made from natural stone, ceramic, composite materials, HPL, Corian®, glass and other solid-surface substrates.
It is manufactured from high-quality stainless steel and includes a threaded bushing, toothed spring washers (crowns) and a plastic retaining ring.
Why Choose Keep-Nut® for Façade and Ventilated Panel Systems?
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No undercut drilling or glue required — simply drill a cylindrical hole and press the insert into place.
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Quick installation and minimal preparation time compared to adhesive systems.
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Threaded female insert designed so that no bolt can penetrate through the decorative face of the panel, reducing risk of damage.
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Ideal for ventilated façades, cladding, interior finishes, furniture and architectural panels.
Technical Features & Benefits
Simplified Installation Process
Only a standard hole is required (no undercut). Installation can be done with standard tools—drill, Go/No-Go gauge, and mandrel.
The crowns deploy radially under axial load, distributing forces into the parent material and allowing high load capacity.
Robust and Durable Performance
The internal thread does not run completely through the bushing, preventing extraction due to an overly long bolt.
Versions are available in stainless steel grades 303 and 316 (with ETA certification) for optimum durability in façade applications.
Material and Application Compatibility
Suitable for natural stone (marble, granite), fibre-cement panels, HPL, solid surface and composite panels — various thicknesses.
Recommended to test performance in the actual panel material, since pull-out capacity depends on the receiving material.
Applications & Use Cases
Ventilated Façade Systems
The Keep-Nut® insert offers a reliable anchoring solution for ventilated cladding panels, reducing the dependency on adhesives and enabling hidden fastening systems.
Interior & Furniture Assemblies
Also applicable in interiors, furniture and sanitary installations where panels of stone or solid surface require strong, permanent threads while maintaining a clean aesthetic.
Thin Panels & Composite Materials
If adhesive bonding is impossible (thin panels, limited edge clearance) the knock-in insert offers an elegant alternative requiring less depth.
Ordering & Support
Samples and Logistics
Free sample inserts are available on request to support testing and prototyping.
Minimum order quantity: 50 pieces.
Technical Assistance
Our team at Juno Industries can assist you in selecting the right Keep-Nut® model (IM-S, IM-T in 303 or 316 stainless steel) and provide tooling or gauge recommendations. Permanent thread inserts significantly simplify façade and panel assemblies.
Why Partner with Juno Industries
As a European distributor specialising in threaded metal inserts, Juno Industries supplies the Keep-Nut® anchor through the EU (France, Netherlands, Belgium, Spain).
We aim to equip installers, fabricators and architectural professionals with high-quality anchoring solutions to grow their systems reliably.
Contact us now for your sample and technical information on the Keep-Nut® anchoring system — for faster panel installation, improved reliability and hidden threads.
Frequently asked questions about Anchoring system for facade panels Keep-Nut®
How is the Keep-Nut installed?
Steps: drill the hole according to the specifications (diameter + depth), check the dimensions using a Go/No-Go gauge, screw the insert onto the PKN tool, hammer it into the hole, and then unscrew the PKN tool — the insert is now ready for use.
For non-sensitive and/or scratch-resistant panels, the Keep-Nut can simply be hammered directly into the prepared hole.
Do you need adhesive or undercut drilling?
No — the Keep-Nut only requires a standard cylindrical hole; no undercut drilling or adhesive is needed.
In which materials can the Keep-Nut® be used?
Examples include granite, marble, travertine, fiber cement, HPL, solid surface, tempered glass, and composite panels. In some fiber cement boards, the insert can also be used, but testing is recommended first.
What is the Keep-Nut® insert?
It is a press-in threaded insert that creates a permanent internal stainless steel thread in panels made of natural stone, composite, HPL, glass, and other solid-surface materials — requiring only a standard cylindrical hole.