The victim was driving southbound on 146 when a large bolt belonging to a truck or trailer smashed through his windshield.
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The bolt struck the man in the neck. He died as a result of his injuries.
PHOTOS: Man killed in freak accident on Hwy 146
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Investigators say the bolt is a retaining pin for containers attached to flatbed trailers.
The vehicle in question would have been traveling northbound on Highway 146 when it lost the bolt, police say.
A $5,000 reward is being offered for information that leads to her arrest.
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If you have information about the driver, you can make an anonymous tip to Crime Stoppers by calling 713-222-TIPS or by submitting your tip online at www.crime-stoppers.org.
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