ATX cable extenders question

My cords dont reach. I need the 4 pin as well as the 24 pin, my question is this


Newegg seems to be where I will order it since no stores carry it. My power supply has 24 pins, and my mobo has 24 pins but all I can seem to find is 20 pin to 24 pin and 24 pin to 20 pin.


Is it ok to just grab one of these? Or do I need to find a 24 pin to 24 pin?


Also, there are no washers between the standoffs and the mobo, some say that is fine and it wont short, but I want to double-check.

Gigabyte GA-P35-DS3L is what I have


They are impossible to find in stores so I was going to order one but didnt see any 24p to 24p that could be ordered. I was thinking about just getting another atx extender but not sure if the voltage and everything would be the same so didnt do it and just looking to see if I can plug my 24 from the psu to the 20 (even though it holds 24) in the mobo

Thanks!

I cant find the 24 pin atx extension on newegg (about 20 bucks cheaper if i coudl find it) so I may end up ordering it from there