Description
Keep-Nut press-in self-anchoring inserts by Specialinsert is a revolutionary press-in anchor insert commonly used for a number of applications including undermount sink installation, ventilated facades, cladding and furniture.These small inserts are designed to install into a wide range of surfaces including Granite, Marble, Quartz, Solid Surface, HPL, Glass, Fiber Cement and other compact materials.
The inserts small size also lends itself to be installed into extremely thin surfaces while also being extremely strong. In addition the Keep-Nut is manufactured in stainless steel and it’s made of a threaded bush with a set of elastic crowns and a plastic ring for holding the complete set of parts together.
Testing Data:
| Material | Keep-Nut Type | Average Pull-Out Load on a Single Insert (lbs) |
| Granite 20mm | IM4S/M4/H8.5 | 1080 |
| Marble 20mm | IM4S/M4/H8.5 | 849 |
| Travertine 20mm | IM4S/M4/H8.5 | 496 |
| Fiber Cement (high density) 12mm | IM4S/M4/H8.5 | 606 |
| Fiber Cement (high density) 10mm | IM4S/M4/H8.5 | 527 |
| Fiber Cement (high density) 8mm | IM2S/M4/H6 | 277 |
| HPL 12mm | IM4S/M4/H8.5 | 1194 |
| HPL 10mm | IM4S/M4/H8.5 | 1348 |
| HPL 8mm | IM2S/M4/H6 | 596 |
| Corian 12mm | IM4S/M4/H8.5 | 1068 |
| Corian 10mm | IM2S/M4/H6 | 650 |
| Engineered Stone 15mm | IM4S/M4/H8.5 | 672 |
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