33/400 Smooth/Ribbed/CRC Caps

33/400 Smooth/Ribbed/CRC Caps are plastic closures with a 33mm diameter and 400-thread finish, available in smooth, ribbed, or CRC (Child-Resistant Closure) designs, used for securely sealing bottles and containers.

The 33/400 Caps are high-quality closures designed for bottles and containers with a 33/400 neck finish, widely used in pharmaceuticals, nutraceuticals, and dietary supplements. Available in Smooth, Ribbed, and Child-Resistant Cap (CRC) variants, they ensure secure sealing, tamper-evidence, and easy usability. Made from durable, chemical-resistant plastic, these caps offer long-lasting reliability and product safety.