Oh Dear! I stand corrected but did the factory ever use/supply the two to the left of your photograph? Similar question with the nylock nut.. I have alsways assumed that they were not available back in the 40s and 50s.
I have seen quite a few of the bolts on the left with the double flats. I purchased a "lot" of used stuff probably 20 years ago that came mostly out of the Detroit area and there were about 6 or 8 complete but old and rusty wheels in there. many of those bolts. I think the ones in the middle like the nylocks are a "well after the factory" addition to the parts supply chain! As for the other nuts I would go mostly with the ones with the red locking rings as the most common, next would be the ones with the little split integral collars.Oh Dear! I stand corrected but did the factory ever use/supply the two to the left of your photograph? Similar question with the nylock nut.. I have alsways assumed that they were not available back in the 40s and 50s.
Yes, invented by Sir Oliver Simmonds. The Spares List spells it incorrectly. All original ones I've seen have a red fibre? insert. I've got a gross of the double anchor nuts, 588 I bought at an airframe parts supplier in the 70's. The nuts with the split in them are Aerotite ones. As far as I know never used on Vincents, but handy on slightly longer studs holding the timing gear steady plate. The conkers judges don't see them and it sure beats punch locking. Just to clarify, Simmonds nuts were not slit, original Aerotite ones were. Simmonds nuts are 98, 499 and 588.Were the original nuts, with the slit locking tops, called Simmonds nuts?