I need a adapter for my singer hand stich - As Seen On TV Handy Stitch Mechanical Sewing Machine

I believe it is called "bird nesting" and is actually a problem with the top thread. See, my answer to the other question you posted.

Free manual online in case that helps:

Download Singer 50T8 E99670 User Manual for Free Page 3 ManualAgent

Make sure you are using a brand-new needle. A bent or damaged needle may not pick up the bobbin thread.

If you can watch the needle/hook action (open the bobbin are and hand-turn the handwheel), you may see that the timing is off. There are many web sites and videos online that explain tweaking the timing.

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Hi Wendy. No stitches like this is likely one of two things. The needle isn't fully inserted into the needle bar. Or it's out of time.

http://www.singerco.com/uploads/download/1297_201k.pdf

Luckily most singers of that era are similar. And there is lots of info on how to time them online.

Do you have thread in your bobbin?
Is your needle fully inserted in the needle bar?
Is it the right needle for the machine?
Is your needle damaged, bent or dull?

Call Singer at 1-800-4singer, sounds like a buttonhole lever problem. Is it like that on all styles of buttonholes? Check that out before you call them, and make sure that you pull the lever all the way down.

You need a heavy duty needle #16 or #18 to sew leather and teflon presser foot is helpful

It may just need cleaning - check the maintenance section of the manual for how to do this.

If you need a manual, check at the Singer Company website.

there is a little screw on the bobbin holder sounds like it needs to be a little tighter

Replace your sharp needle, code 2020, with a ball point needle, code 2045. This usually solves the problem. You can also put "Stitch and Tear" at the bottom to help stabilize the material. If you can do not have Stitch and Tear, try a piece of tissue paper for the short term.