Countersunk Socket Screws

A Countersunk socket screw is a threaded fastener with an angled head designed to be flush with the fastened surface, it is driven by an Allen Key / Hex key.
Normally grade 10.9 unless they are stainless steel when the grade is stated as A2 or A4.

These are not always fully threaded, the rule of thumb for the part threaded is NORMALLY 2 x the diameter + 1/2 an Inch, otherwise they are fully threaded.
We do not always have a say whether they are fully threaded or not.

To measure a Countersunk Socket Screw, you measure the overall length.
Just because the Countersunk is the same diameter as yours does not mean it is exactly the same. The ones listed here are all Metric Coarse thread.
Occasionally in engineering and automotive industries they use a finer pitch on a Countersunk. While we do not stock these, we are normally able to get hold of them,
Contact us for a quote!

Also, please bear in mind there are several different metric fine pitches, for example;

M10 x 1.5 = Standard/Coarse
M10 x 1.25 = Fine
M10 x 1 = Extra Fine

Please ensure you are asking for the correct pitch and be aware that there are minimum order quantities for non-stock items.