Metal grey, like a handful of screws and the machinery they hold together.
Nuts and Bolts is a neutral grey.
It can be described as neutral, medium and colorless.
Set in black, because black reads best on it.
A nut is a type of fastener with a threaded hole. Nuts are almost always used in conjunction with a mating bolt to fasten multiple parts together. The two partners are kept together by a combination of their threads' friction with slight elastic deformation, a slight stretching of the bolt, and compression of the parts to be held together.
Read on WikipediaNuts and Bolts was a weekly television drama series, set in the fictional South Wales town of Ystrad. It began airing in 1999 on HTV. It ran for three years until it was cancelled in 2002.
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