our seat screw is design to replace the stock seat screw NUT. This nut will thread onto you Carbon fiber rear fender fxlrs fxlrst fxfb fxfbs fxbb fatbob lowrider and lock in place. Standard thread size of 1/4x20 .
- Steel Nut
- flange nut w/ loctite
- 1/4x20 Philips head seat screw with star washer
