These versatile stainless steel screws fit Alexander, Finke, Hoyer, and any other horn with a Meinlschmidt valve set (Lewis, Berg, Hill, etc.). They are lightweight, unbreakable, and rust-free. Can also be used to replace string screws. Perfect replacements for the Torx-head screws found on modern Hoyer horns. (Sold in 10 packs)