![](/images/stories/virtuemart/product/resized/h5240_A5_230x175.jpg)
![Screws, Black Plated Steel, Countersunk Flat Phillips Head, approx. 100 pcs_product_product h5240.jpg](/images/stories/virtuemart/product/h5240_A5.jpg)
These screws need a jewelers' screwdriver or similar - countersunk Phillips head.
See below for size and gauge code.
Metric dimensions are nominal and specified as
Overall Length x Shank Diameter Under Head x Head Diameter.
How wood screws are described and measured
These screws are made to an ANSI (American National Standards Institute) standard which determines the gauge and key dimensions.