- Octalink bolts include steel washers, JIS includes black plastic caps
- HT2 mount bolts (low torque plastic, except XTR-M970 aluminum) are for mounting non-drive arm
- Hollow bolts (SH-21504) not recommended for non-treated spindles
| Option | Barcode | Manufacturer's Part Number | Vendor Number |
|---|---|---|---|
| Silver | 00689228151031 | Y16P98010 | SHI-Y16P98010 |