Does the standoffs have to be plastic? When I type in motherboard standoffs to get some for a build, none are plastic or something that does not conduct electricity. They seem metal like and wouldn't that cause a short then? Also, Can you tell me if I am correct. But basically lets say there is 6 screw holes in my case and my motherboard will go over all 6 places but only has 5 screw holes on the board. So I place one standoff in the case hole that the motherboard does not have a hole for and the board sets on that essentially right? I know there are other forums out there but does not quite answer all my questions. Here is an example of a standoff that I am not for sure would work sense I thought they had to be plastic or cardboard.
http://www.amazon.com/StarTech-Brass-Motherboard-Standoffs-Computer/dp/B00213KL5I/ref=sr_1_1?ie=UTF8&qid=1462498807&sr=8-1&keywords=motherboard+standoffs
http://www.amazon.com/StarTech-Brass-Motherboard-Standoffs-Computer/dp/B00213KL5I/ref=sr_1_1?ie=UTF8&qid=1462498807&sr=8-1&keywords=motherboard+standoffs