High quality drum lug. Order the mounting screws separately. These lugs also require the rubber gaskets to align properly on most drums, now included. NOTE: Mounting screws are NOT included with our lugs, since we offer many lengths for different shell thicknesses. Shown a single lugs , but are actually double ended. These can be used as single ended lugs - just remove one insert. Parts noted Hayman style mean that they look a bit like some Hayman parts, the hole spacing fit could vary. There are no standard there. If you are trying to retrofit a Hayman drum, make sure to measure your holes to compare for a fit. Very sorry, the gaskets for this lugs are not available as a separate item, only along with the lug.