From Earth to Saturn: Getting a Grip on Vibration, Shock and Extreme Temperature

A unique internal thread form is helping manufacturers combat vehicle vibration, shock and temperature extremes not only on the toughest earthbound applications but also on the frigid surface of Saturn's largest moon - for improved safety and performance as well as lower warrantee, service and assembly costs.

When the Cassini-Huygens spacecraft enters Saturn's orbit in July 2004, it will have endured - for the first time in human history - not only the vibration, shock and temperature extremes of a Titan IV rocket launch, but also a seven-year journey from Earth across more than 750 million miles of space. Later, the Huygens probe will dive into the murky atmosphere of Titan, Saturn's largest moon, measuring atmospheric composition all the way down to Titan's frigid surface. For accurate atmospheric measurement of both Saturn from the Cassini orbiter and of Titan from the Huygens probe, several hundred bolts must maintain vacuum-tight sealed cavities for the duration of their mission, with no thread loosening or stripping.

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