Keep-Nut Inserts

Keep-Nut is a press-in threaded insert that utilizes a mechanical anchoring feature, to provide permanent threads in panels made of marble, granite or other stones. It is manufactured in stainless steel and consists of a threaded bush, a set of toothed spring washers (crowns), and a plastic ring holding the parts together.

Available in different lengths, with or without flange, to fit several different panel thicknesses, Keep-Nut can be installed quickly since the user simply needs to drill the material with the correct hole diameter and press-in the insert. Keep-Nut can also be customized with different versions and sizes, to meet specific customer requirements.

The Keep-Nut insert is specifically developed to fasten ventilated facades, wall-coverings, decor and interiors, furniture, kitchen and sanitary elements, as well as a variety of other applications.

Advantages:

• The preparation needed is just a cylindrical hole - an undercut hole is not required - which means that standard tools can be used
• Assembly by pressure is quick and easy and does not require use of any additional resins or adhesives
• Inserts can be used for hidden assemblies without any protruding parts, facilitating the handling and installation of a variety of materials
• In use, the crowns are engaged by axial force, acting radially against the hole wall, effectively permanently locking the insert in place
• The internal thread does not run completely through the bush, which prevents extraction as a result of the use of an excessively long screw

Simple Hole Preparation:

• Quick installation
• No need for resins or adhesives
• Radial force is produced only while the insert is under tensile load. The crowns spread the load into the parent material, allowing large loads to be carried
• Thread stops before end of insert, avoiding extraction as a result of the use of an excessively long bolt