North Mountain Supply 58mm Black Metal Screw Caps with Plastisol Liner – Pack of 12. These 58-400 continuous thread lids feature a non-removable plastisol liner designed for hot-fill sealing, creating a secure hermetic seal. With a sleek black exterior, white interior, and ribbed sides for easy grip, they are ideal for professional canning, bottling, and storage. Proudly Made in the USA, these food-safe lids are reliable for home or commercial use. We recommend testing these lids with your specific filling process for compatibility. To promote a positive and satisfying customer experience, this product is covered by North Mountain Supply's 30 day hassle-free replacement program, in the event the product is damaged or defective.