This is a Velocette Venom, Viper or Thruxton centre stand stainless steel stud with nuts and lock washers. It is 10 1/2 inches long and may well fit other models. It has cycle threads on each end and the treads are the correct 60 degree angle, it is supplied with the cycle nuts which are also the correct Whitworth spanner size, and there are two rectangular section stainless steel lock washers.
All British thread data can be viewed on our web site. Any queries please phone Motalia on +44(0)1953 789420 office hours. J25
All studs, nuts, washers etc can also be purchased separately from the Stainless Steel Fasteners section.