3/8 x ~ 1 bolt.
Add the thickness of all parts and locking devices and add 1.5 times the bolt diameter which happens to be 9/16 for a 3/8 bolt. This yields the needed bolt length.
The bolts in my C ballencer are 3/8 x 1 NC with a 7/16 head and integral washer. 3/8 usually have 9/16 heads.
|