Sealing Hardware

APM Hexseal® holds the notable distinction of having designed and patented the very first self-sealing fasteners, which later became our trademarked Seelskrews® and Seelbolts®.

It wasn’t long before we developed other sealing hardware, like our self-sealing Seelnuts® and Seeloc® Washers. In addition to providing a strong, reliable seal against all manner of contaminant(s), APM Hexseal’s wide range of hardware products are designed for easy installation and equally easy removal and reuse.

APM Hexseal’s self-sealing fasteners and sealing washers – When simply fastening just isn’t enough!