North Mountain Supply 63mm Gold Metal Screw Caps with Plastisol Liner – Pack of 12. These 63-400 continuous thread lids feature a non-removable plastisol liner that handles hot-fill sealing with ease, forming an airtight, hermetic seal. The all-gold finish and ribbed sides provide a professional look and easy application, while the stacking feature allows for convenient storage. Proudly Made in the USA, these food-safe lids are ideal for canning, preserving, and packaging. Test with your filling process to ensure 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.