Idle Air / Fuel Mixture Screws Brass With Cork Gaskets, Fits: Holley Carburetor Specs: *Sold as 4 Pack *Includes Cork Factory Style Seals *Screws Are Made From High Quality Brass *Fits 2300, 4150, 4500 & 4160 Series Holley Carburetors *Also Works With Most AED, Quick Fuel & Demon Style Carbs *Part Number: 7382 *These are Genuine Holley Performance Parts *These Parts Will Come In Bulk Style Bag Packaging