Pack of 15 black metal screw caps with 28 mm (28-400) threading and plastisol liners designed for hot fill applications. When activated by product heat, the liner forms an airtight, hermetic seal on compatible jars and bottles with a 28-400 finish. Made in the USA.
North Mountain Supply 28 mm black metal screw caps are a practical closure choice for hot filled products and general food and beverage packaging. This pack contains 15 metal caps, each designed to fit containers with a standard 28-400 thread finish, providing a clean, professional look for sauces, syrups, concentrates and more.
Each cap is equipped with a plastisol liner formulated for hot fill use. During proper hot filling, the heat from the product activates the liner, allowing it to conform to the container’s sealing surface and form an airtight, hermetic seal. This helps protect freshness, flavor and shelf life when combined with appropriate canning or hot fill procedures.
The black metal exterior offers a sleek, neutral appearance that works well with a wide range of label and bottle designs, from rustic to modern. These caps are suitable for glass jars and bottles specifically designed with a 28-400 thread finish.
Important compatibility note: these caps are not intended for use on growlers or screw top wine bottles. They are engineered for jars and bottles with a matching 28-400 finish, so checking the neck finish of your container is essential before use.
Key features:
Pack of 15 black metal screw caps
28 mm (28-400) threading for compatible jars and bottles
Plastisol liners designed for hot fill applications
Liner helps form an airtight, hermetic seal when properly activated by product heat
Sleek black finish that pairs well with many container styles
Made in the USA
Suggested uses:
Hot filled sauces, syrups and concentrates in compatible 28-400 bottles
Dressings, marinades and beverage bases using appropriate hot fill processes
Shelf stable pantry items where an airtight metal closure is desired
Always verify that your containers have a 28-400 neck finish and follow safe hot fill or canning practices recommended for your specific product. Test a small run to confirm seal performance before committing to full scale production.
