Check the listing for details. Needle Set Screw #504112 for Singer Industrial Sewing Machines -2 Pk. Condition: New. Listed at 6.99 USD. Description: Needle Set Screws for Singer Industrial Sewing Machines. Part # : 504112 Fits Singer models : 191D200A, 20U42, 20U43, 20U51, 20U53, 20U62, 20U63, 20UX142, 238D300A, 291U, 291U1, 291U3, 299U1350, 299U1351, 299U1353S, 299U1353M, 299U1353L, 299U1357S, 299U1357M, 411U157A, 411U157J, 411U157K, 411U557J, 457, 457U105, 411U557A, 411U557K, 457U125, 491D200AA, 491D200GA, 491D300GA, 591D200A, 591D300A, 591E200A, 791D100AYou will receive 2 screws. Shipping: Free shipping in the USA. International Buyers: Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer's responsibility. Please check with your country's customs office to determine what these additional costs will be prior to bidding/buying. These charges are normally collected by the delivering shipping company or when you pick up the item. These charges are not additional shipping charges. We do not mark merchandise values below value or mark items as "gifts" as US and international government regulations prohibit such behavior.