Objective Lens Threads

Sunshades and AO wheels both. If you are dead set on wanting them, do your research on accessory items (first). There is some universal stuff on the market which can often be a compromise in some way. Sunshades might be tough. Like nevoustrig said, rarely do you see thread size noted. Same goes for honey comb glare reducers. Most are this X part fits X,Y,Z models.
 
See if B&H has the scope you purchased in stock. Set your price point you are willing to pay on a sunshade. Create an account. Email their sales team, tell them what you are looking for (include a link to the scope on their site), and your price point. They will bend over backwards to see if they have one in stock.

I have always gotten good service from B&H.
 
Bottom of an aluminum PEPSI can press fits almost snug on the inside. Be creative paint it matte black inside and out after you do some cutting. Flair out or in with needle nose pliers very slightly and Use thick Teflon tape to keep it in place. The drinking end use a can openner and the bottom a sharp knife. You only lose your recycling fee.

You can opt to flair out put electrical tape on the scope to not scratch and slide on outside and hose pipe clamp.