439/440 series
For 439/440 series, specification type is neck_finish; description is Deep-thread, heavy-duty finish, coarse thread or modified CT; primary dimension is Deep-thread, heavy-duty; secondary dimension is Coarse thread or modified CT; equivalence or compatibility note is Ensures robust sealing and durability for repeated use, recorded from its source on 2026-08-12.
- Specification ID
- 439/440 series verified
- Specification type
- neck_finish our reading
- Description
- Deep-thread, heavy-duty finish, coarse thread or modified CT verified
- Primary dimension
- Deep-thread, heavy-duty verified
- Secondary dimension
- Coarse thread or modified CT verified
- Equivalence or compatibility note
- Ensures robust sealing and durability for repeated use verified
- Additional data
- Industrial containers, thick liquids verified
Values marked our reading are our classification of what the source says — the source does not print them in those words. The quote below is the evidence for each one; judge it yourself.
What the source says
439 / 440 series | Deep-thread, heavy-duty | Coarse thread or modified CT | Industrial containers, thick liquids | Ensures robust sealing and durability for repeated use.
— evergreenresources.com, retrieved 2026-08-12
Source
- evergreenresources.comhttps://evergreenresources.com/plastic-bottle-neck-finishes/