You'd need to be a enthusiast to understand why, put it this way I have a Corsair 100 GTi water cooler & I have 4 of these standoffs for Intel motherboards which I don't need as I have an AMD Motherboard of which I only have 3(lost one) If anyone needs an intel standoff they could gladly have them free of charge.
Male to male is not easy to find online! Tracked some down here if and they do free samples. They ask for a company name at check out though. https://www.essentracomponents.com/en-gb/s/pcb-spacers/threaded-male-to-male#