Stupid rear axle bolt question

I need to adjust my chain on my 02 F4i and when I loosened my rear axle i didn't need anything on the side opposite of the side i used my wrench on. Now that i need to tighten it back down it spins after i get to a certin point. I thought it was just a allen wrench that I needed but the largest I and home depot have is 10mm. Do I just use a larger size that I dont have or is it something else entirely that I should be using on that side? This is the first time I adjusted my chain since I got my bike a few weeks ago and I dont have any manual or tool kit that it would have came with

Yes you need a socket on both sides or the axle nut will keep spinning. I believe a 27mm and a 24mm.

there isn't a socket on the one side, it is smooth and round. It doesn't look like it's stripped, it looks smoooth and round. and in the center there is a reces that looks like it might fit a allen key or something but home depot sells up to 10mm and thats still too small. I just took a couple pics of where I am talking about. Excuse the dirty bike, it was raining yesterday on the way hoome from a bike rally and I havent cleaned her yet...

I have a '02 F4i as well and mine has a nut on that side. Yours looks like it has been replaced with one that uses a allen wrench. I would just replace your chain anyways because how close it is to the "replace chain" area.

Forget home depot and try a trade tool centre.

you mean like a auto parts store? I dont know of any motorcycle tool stores or anything like that around me

Got a sears or home depot nearby? Try there, they do make them that big.

Well I dunno what you guys have in a Home Depot but i'm guessing it's like a hardware megastore or some shit. We have a shop here called "Trade Tools" They specialize in tools only. If they don't have it there then they don't make it. Can also try a nuts and bolts shop cuz they almost always have the tools to fit their products.

you can try buying a bolt and nut from home depot.put the nut onto the bolt tighten then put the head of the bolt in the axel and use a wrench to hold the nut.probly the cheapest way instead of buying tools

just went to a auto tool store and they sent me to sears but that closed at 6pm on sunday and I got there at 6:03 lol Guess I can't ride to work tommorow. Thanks for the help at least I know it isn't normal, guess they had a reason but I don't really want to know how they managed to lose the oem bolt lol

Instead of playing around with hex keys and whatever else, go to you Honda dealer and get yourself OEM nuts.