The distance between the two screws is 7/8 inches.
They are 3 1/8" long and come in package of 4.
There are 4 cleats in each package.....nowhere does it say that!!
Probably would be enough to hold sash of a not too heavy curtain open but would not support the strong pull from the cord of heavier venetian blind that's pulled even half-way up a window.
4 per pack.
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web site did not clearly indicate packed 4, I only needed 1, price was such as the additional qty was saved for future use
These are't ment for heavy loads