“European” to US screw nomenclature mapping (and reverse)

screws

My wife's company allowed moving her raising desk for working from home. Not sure how it happened, but we've lost the crews which fixate the table top to the metal frame it's standing on.

I consulted with the PDF assembly instructions and it says we need the ST4.8x19 (wood screws). As far as I understand, it's a self-tapping screw with 4.8mm ø and 19mm length, with thread pitch unspecified.

Is there (ideally, an easy) way to figure out whether the US mass-produced screw variety has an equivalent replacement? Or should I just convert the metric diameter and length to the closest value(s) and use such screws instead?

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Best Answer

These are metric sizes.

4.8mm is a mighty peculiar size - usually they go in for round numbers. 4.8mm is 0.19 inches.

ASME #10 screws are 0.19 inches diameter.

These are #10 wood screws.

19mm is 3/4". So they are 3/4" long.

Any #10 x 3/4" wood screw should do the trick.


By the way, 3.5mm is 0.138" which is the diameter of ASME #6.