Hat Washers/Spline Drive Inserts
Designed as a replacement insert for your Bolt Drive or Spline Drive Sprockets.
HAT WASHER SPECS
- Covert your 22mm center bore to 19mm
- High quality hardened Steel that resist indentations from splines.
- Universal for any 22mm center bore sprockets
- 3 versions made for 4.5mm, 1/4", and 5/16"(8mm) sprockets
SPLINE DRIVE INSERT SPECS