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Keep-Nut 1 Crown self-anchoring stainless steel insert for stone and composites
Schematic drawing of Keep-Nut 1 Crown stainless steel insert showing single crown design and plastic ring
Keep-Nut 1 Crown press-in insert
Side view of Keep-Nut 1 Crown self-anchoring insert displaying internal thread and plastic ring
1 Crown Keep-Nut insert for stone and composites
Range of 1 crown, 2 crown and 4 crown Keep-Nut stainless steel insert
Keep-Nut 1 Crown self-anchoring stainless steel insert for stone and composites
Schematic drawing of Keep-Nut 1 Crown stainless steel insert showing single crown design and plastic ring
Keep-Nut 1 Crown press-in insert
Side view of Keep-Nut 1 Crown self-anchoring insert displaying internal thread and plastic ring
1 Crown Keep-Nut insert for stone and composites
Range of 1 crown, 2 crown and 4 crown Keep-Nut stainless steel insert

Keep-Nut® - 1 Crown - M6

Light-duty, self-anchoring stainless steel insert
£31.05£37.26 inc. VAT
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Keep-Nut® 1 Crown is a self-anchoring stainless steel insert engineered for secure, permanent fixings in stone, marble, granite, composites, high-pressure laminates, and solid surfaces such as Corian®. Compact and simple to install, users only need to drill the material to the correct hole diameter and press in the insert — no adhesives or resins required.

The single-crown configuration provides reliable anchoring for thin materials or low-load applications, delivering stability without compromising surface aesthetics. The crown expands mechanically within the hole, creating strong resistance to pull-out forces. For added reliability, the internal thread stops before the end of the insert, preventing extraction from using an excessively long bolt.

Manufactured from stainless steel, with a plastic ring that holds the insert components together, the unheaded Keep-Nut® 1 Crown insert offers excellent corrosion resistance and durability for both indoor and outdoor use.

If your application requires higher pull-out strength, explore our 2 Crown or 4 Crown Keep-Nut® inserts for increased load performance. Shop them here.

Not included in our volume discount
Image shows a 4 Crown Keep-Nut®
Thread Size:M6
Pitch Size:1.00mm
Recommended Hole Size:12.00mm
Recommended Sheet Thickness:Min 8.00mm
Dimension (L):4.50mm
Material:Stainless Steel
  • QTY 10 - 8111167
  • QTY 100 - 8211167