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KEEP NUT Threaded insert

Keep-Nut® is a press-in threaded insert used as a mechanical anchor to insert permanent pins into marble, granite or other stone panels, as well as composite materials, carbon, Corian®, HPL, glass, agglomerate and other solid materials . The lock nut is made of stainless steel and consists of a threaded bushing, a set of toothed spring washers (crowns) and a plastic ring that holds the parts together. 

Pack of 25 Pcs

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Availability: In stock


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This product will be delivered to your doorstep within 24 hours.

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Easy made
Return within 14 days even in the store.

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KEEP NUT Threaded insert

KEEP NUT Threaded insert is an innovative anchoring system for obtaining a threaded seat on slabs, even thin, of marble, granite, or other stone material, as well as on composite materials, carbon, Corian, HPL, glass and other elements of nature compact. The KEEPNUT threaded insert are made of stainless steel and are composed of a threaded bush with the addition of a series of toothed crowns and a plastic ring that assembles the whole.


  • Ventilated facades, building claddings
  • environments
  • Furniture
  • Kitchens
  • Fixing of sanitary elements
  • Funeral art


  • Rapid insertion by pressure
  • It does not require glues.
  • Allows a completely concealed mounting without external encumbrances, facilitating the movement and storage of the slabs.
  • No tension on the receiving material if the insert is not stressed.
  • During use, the elastic washers are stressed by an axial tensile force, acting radially against the walls thanks to the bending and pressure, avoiding the escape of the system.
  • The threading of the "non-through" bushing, ensures the fixing avoiding the extraction effect caused by the possible inappropriate length of the screw


Marble, granite and stone materials, as well as on composites, carbon, Corian®, HPL, glass and other compact materials.


By pressure

SERIES IM (without flange)

Code Min. Thicknesses Thread   Thread lenght Hole diameter Hole depth Crowns number

Average assembly press-in force* - kN

Average pull-out strenght* - kN
IM2S/M6/H6 8,5 M6 5,5 12 6,5 2 0,4 2,5

Additional Info

Additional Info
Download the data sheet No
Download the safety sheet No
Download the material safety data sheet Download
Vendors No
Brands No


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Frequently bought together

Customers who bought this product also commonly purchased the following combination of items.


  • Keep Nut   Self anchoring threaded insert for stone   Specialinsert   ITALY