These are the short bolts you need if you take off your factory roof rack.
This one order will get you 12 of these bolts, enough for one FJ's roof.
You may also want to order the brackets, also on this site, part # 63185-42020, and the covers, they come in different colors depending upon the color of your roof.
- Model: 90119-08C47
- Manufactured by: Toyota