Funny you should mention that. I also made some for my
Heavy Ten. I have an NOS one for a 9" 10K and according
to the part number, they use the same screw as the Heavy Ten.
Using the dimensions from that screw I made these.
The original used 30° bevel knurls but I like the 45° bevels. That matches the
knurling on the knobs of the QC gearbox and other SBL accessories.
I have 3 different tpi knurls (30, 25 and 20 going from left to right). I was going
to ask people here which pitch looks best to them.