Gustav Dyvling
Mid Sweden
Tel: +46 (0) 790 064 471
One of APM Hexseal's earliest innovations was a self-sealing hexagonal nut, or Seelnut®.
Seelnuts install just like conventional nuts, and are designed for use with ordinary screws, bolts and studs, making them a quick and easy sealing option for all sorts of applications, especially where there is a need to withstand high internal or external pressures.
Our Seelnuts are made from high quality rubber, molded into a specially shaped cavity in the nut itself. With threads molded directly into the rubber, these self-sealing nuts form a positive seal along the threaded section of the Seelnut, as well as with the contact surface, removing the need for gaskets, sealing compounds or extra surface preparation. The single piece design makes for a more consistent and reliable seal, resulting in a significant savings of time and expense, and contributing to overall performance efficiency.
Manufacturer: APM Hexseal, USA
Technical data - APM Hexseal Seelnut
| Pressure range | Up to 20000 psi |
| Material | Stainless steel |
| Temperature range | -106°C - +260°C |
| Seal | Silicone conforms to A-A-59588, Class 3A, GR60, Red |
| Thread | R (mm) | C (mm) | D (mm) |
| M3x0,5 | 0,2 | 5,5 | 2,2 |
| M4x0,7 | 0,3 | 7,0 | 3,0 |
| M5x0,8 | 0,4 | 8,0 | 3,8 |
| M6x1 | 0,5 | 10,0 | 4,8 |
| M8x1,25 | 0,6 | 13,0 | 6,3 |
| M10x1,5 | 0,6 | 17,0 | 7,8 |
| M12x1,75 | 0,8 | 19,0 | 9,3 |
| M14x2 | 1,0 | 22,0 | 10,8 |
