Cork Rings and a 24 Keck Clamp
You can't sensibly have round bottom flasks without cork rings. These are cork rings sized to match the round bottom flasks I made. There is also a single size 24 keck clamp that can be used with the stopper or with future glassware to connect various pieces. The models are setup for use with Cycles. The larger file size is from the embedded 2K cork texture used from https://cc0textures.com/. If you need a higher resolution of the cork texture there is a 4K variant available. Thanks cc0textures for the wonderful texture! The dimensions on these models are 10x real world scale. Note: the round bottom and 24/40 stopper are NOT in this file, they are available in the round bottom asset (https://gum.co/KDcgK). I strongly recommend keeping the subdiv modifier OFF for the clamps in the viewport.
Please consider providing attribution in any published work that makes use of these assets to Dr. Joseph G. Manion. If you find these assets useful please refer others to them so that they can benefit similarly. Thank you very much.
the .blend file including the models and materials