Lambretta Stainless Steel Stepped Repair Stud 7mm to 6mm For Exhaust Tailpipe 17x13x11mm MBP0395
This is a stainless steel stepped 7mm to 6mm oversized stud to repair a damaged crankcase side tailpipe 6mm thread.
Drill the hole to 6.1mm then tap out the casing to 7 x 1.00mm to the correct depth Loctite and screw the stud into place.
From MB Scooters
MBP0395