The bearing guide comes with the following hardware
4 x button head m4 bolts (various lengths)
2 x 8mm x 8mm m4 barrel nuts
2 x 12mm od 4mm id 4mm thick sealed bearings
2 x 2mm spacer
1 x 12mm spacer
1 x 7mm spacer
allen key
For more information go to the bearing fence page.