Made to fit 36 oz Adam's Peanut Butter jars. I spent way too long trying to find lids to fit the jar, so I just made one.

Made it pretty sloppily in Fusion 360 using the coil tool. If you are at all interested in making a more polished version with Fusion 360, you can get pretty close to this by doing the following:

• Make a cylinder 102mm wide and 15mm high.
• Shell the top surface to 1mm thickness.
• Create a coil centered on the lid with a radius of 100mm and thickness of 1.5mm. Set the height to 5.75mm and let it do 1.15 revolutions and make sure you render the coil as a new body.
• Move the coil up by 3mm so the thread isn't too close to the lid.
• Champfer the lid ends to .7mm (or some other near measurement since fusion360 sucks with champfer and may have errors)
• Combine the coil and lid

Unfortunately I couldn't find any standard threading the jars belonged to and measuring glass threads is a massive pain. For your convenience, I measured the pitch to be around 5mm. Originally thought it was 1/4", but was too snug.