APM Hexseal’s High-Pressure Self-Sealing Nuts
APM Hexseal’s 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. 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. Seelnuts are also reusable, meaning that they can be easily removed and reapplied, reestablishing the same reliable seal when torqued. Our Seelnuts are available in all standard thread sizes as well as a variety of different elastomers to suit your application needs. For applications where excessive vibration is an issue, Seelnuts can be supplied with self-locking pellets.