What's wrong with these guys? British Tools and Fasteners
Minimum order is $5 - shipping by fist class mail is $2.67 to Boise
I feel your pain - I had a '66 Triumph Bonneville - I ended up with a lot of 32nds of an inch tools or replaced hardware that wasn't part of the motor.
Give them a call - they may know your machine and exactly what you need.