How often can an APM self-sealing fastener (screw, bolt, nut) be used?
The APM design and patent (U.S. patent no. 3,175,454) was conceived to generate highpressure fastener sealing and maximum multiple usage. However, this frequently asked question cannot be answered with a simple number, because each application condition is different in terms of reinstallation frequency, in combination with environmental and operating conditions. Because of the asymmetrical annular design, minimum O-Ring friction occurs producing minimum wear which results in maximum reusability. Repeat orders from many customers confirm satisfaction from field servicing using these fasteners.
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- How often can an APM self-sealing fastener (screw, bolt, nut) be used?
