Get a sturdy tripod. Attach your camera bag to the weight hook to steady the tripod. Work with the widest possible lens (starting at 10mm and progress through to 15mm and end up at 20mm). Open the aperature wide perhaps 4.0 or wider. Set your shutter speed for long time. Longer than 4 seconds is optimal. Set your ISO to 6400 or lower. Higher ISO will bring out the background. Use an electronic shutter release and burst several shots at a time. Don't be afraid to experiment and bracket your shots. Each camera is different. Remember that fireworks are really slower than a speeding bullet. You should not think you need small aperature, short shutter speeds and high ISO. just the opposite.

I am going to a concert at a minor league ball park with fireworks after the show. Going to be in a place that I can use a monopad or a tripod. I have a Nikon500 with several lens. Thinking of my Nikon 16-80 2.8 to 4
zoom or my Tamron 10-24 3.5-4.5. I know I will be giving up some speed with the Tamron. Questions are using mono or tripod and which lens. Secondly what settings usually work capturing fireworks... sorry this is such a long question... thanking all of you in advance for your input

Your distance to the display will determine your ISO/Aperture combination. If you are close, a lower ISO will work well - if you are far away you'll need a higher one. One way to check is to make a test exposure at F11 and ISO 200, if your bursts are just streaks of white light, then lower the ISO and/or make the aperture smaller. If you want to include some ambient light, longer exposures will do that as well as provide better looking burst trails. You can use shutter speeds as short at 1 second, as long as 8 or more, or multiple burst captures by placing a lens cap or cup over the lens as has been suggested.