I did'nt buy from Horizon Hobby.There is a rc hobby store on ebay that sells these parts.The hub was 19.00,the bolt was 2.99 and the washer was 5.99 so about 33.00 bucks with shipping.I don't know if he is getting more of them but here's the store name, FischelsHobbyCenter And you have a very good price if you include a machined and balanced fly.I would be real cool to have the fly and the hub as a one peice item with a bud style lug where the prop bolt or stud would bolt to the inside of the lug.Here's a little drawing.not the best.Thanks Poco