This items includes qty ONE screw. Shown in a grouping to display from various angles. LONG=10PLY ( this can vary lug to lug depending on the length of it's screw inserts - but this is a good guide point to start ),High quality drum lug standard mounting screws for common maple shells. If you need longer for extra thick shells , Please see the longer options listed on our website, or contact us with your shell thickness details for help.. If you need special cup washer screws for a thin metal shell look at item 5013ct. SHOULD work with most shells close to 13mm or 5/8in thick.