Question:
should grade 8 bolts be used with this pin box
asked by: Ken
Expert Reply:
I spoke with the manufacturer and a minimum of Grade 5 hardware is recommended for installing the Trailair Rota-Flex 5th Wheel Pin Box, # LC328330 , so Grade 8 will also work.
Trailair Rota-Flex 5th Wheel Pin Box - Lippert 1621 or 1621HD - 18,000 lbs
