Tinplate Aluminum Screw Lug Caps 38mm-82mm with Airtight Seal Leakproof and High Heat Resistant Liner for Food Glass Jars
Our premium metal screw and twist-off lug caps are engineered specifically for high-volume commercial glass jars, providing exceptional airtight and leakproof sealing performance. Available in durable tinplate and lightweight aluminum options, these closures feature advanced internal liners that withstand standard hot-filling, pasteurization, and sterilization processes.
Designed with custom color coatings and anti-corrosion finishes, they deliver both functional reliability and enhanced shelf-appeal for global packaging distributors and brands.
| Neck Finish | GPI 400, 410, Twist-off Lug standard finish |
| Diameter | 38mm, 43mm, 48mm, 53mm, 58mm, 63mm, 70mm, 82mm |
| Material | Tinplate / Aluminum |
| Liner | PVC / PP / Silicone Gasket (High heat resistant) |
| Feature | Airtight Seal, Leakproof, Safety Button (Optional vacuum indicator) |
| Surface Finish | Glossy / Matte / Food-grade lacquer coating |
| Color | Support Custom Pantone Colors |
| Logo/Print | Silk screen printing, Lithography offset printing, Embossed/Debossed |
| Application | Food & Beverage, Condiments, Preserves, Cosmetics, Nutraceuticals |
| Packing | Export-safe master cartons with PE inner liners, stacked on ISPM-15 compliant plastic/wooden pallets |
- Commercial Food Processing & Preserves: Ideal for large-scale food manufacturers packing honey, jams, pickles, sauces, and condiments requiring high-temperature pasteurization and vacuum sealing.
- Premium Beverage & Dairy Bottling: Perfect for commercial lines distributing cold-brew coffees, organic juices, and jarred dairy products, ensuring extended shelf life and zero leakage during transit.
- Wholesale & Distribution Supply: A reliable packaging component for global packaging distributors and container wholesalers looking to provide complete, high-quality jar-and-lid combinations to local end-users.
- Nutraceutical & Herbal Packaging: Tailored for B2B brands sealing wellness powders, dried herbs, and high-end health supplements where premium airtight protection is essential.
Chemical & Acidity Compatibility: If your products are highly acidic (e.g., vinegar-based pickles, pure citrus juices) or contain high salinity, please notify our team in advance. We will upgrade the internal food-grade protective lacquer to prevent long-term corrosion.
Sterilization Method Verification: Please specify your processing method (e.g., hot-filling, pasteurization, or high-pressure retort sterilization). This allows us to select the precise gasket material (PVC, PP, or high-temp silicone) to withstand your thermal processing temperatures without degrading.
Capping Machine Torque Calibration: Before running high-speed production, ensure your automated capping machinery is calibrated to the correct torque limits for tinplate or aluminum. Excessive torque can strip the threads or distort the cap shell, compromising the seal.
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Have questions about our products or want to discuss a custom order? Our team is ready to help you.