The GreenBolt® was designed for the 1100 series pocket and engineered to make up for the short comings of the standard allen head bolt.
Each Greenbolt™ is measured from the neck, and down towards the bottom.
As a General Rule:
Add 1-1/2" to the thickness of your cutter wheel.
For instances that include a 3/8" thick wheel, use a 1-3/4" bolt for the application.