Originally Posted by Fred@ReverseLogic
The base on the Torin jack stands is 7.5" point to point. The block is bolted to the saddle with an M10x1.5 bolt which is 55mm long. It come up through the bottom of the saddle which is about 35mm thick including the stem pressed into the inner post. I also have an alternative set up with a headless bolt that allows the blocks to be easily removed. The ears on the saddle keep the blocks from spinning.
Not sure what you mean by "pin on the bottle". There is a pin that locks the inner tube into one of five positions 25mm apart. Normally, you would be able to use the jack stands at the lowest two settings. I have been using the jack stands since 2007 and stability is not an issue when used in pairs.
sorry - typo. i meant pin on the bottom of the block to lock it in place on the saddle, but you explained that a 10mm bolt is doing it which is better than a pin.