Lambretta Stainless Steel Stepped Repair Stud 10 to 8mm 20x11x17mm For Cankcase Side Swan-neck MB MBP0392
This is a stepped oversized stud to repair a damaged crankcase side 8mm thread.
Drill the casing hole to 8.7mm then tap out the casing to 10 x 1.5mm thread to the correct depth then loctite and screw the stud into place.
Sizes are 10 x 1.5mm to 8 x 1.25mm, 20 x 11 x 17mm.
An affordable repair solution.