# 120-400 — Packaging specification equivalence: neck finishes, corrugated grades and pallet standards For 120-400, specification type is neck_finish; description is 120 mm neck, 400 series (1 thread turn); primary dimension is T max 120.0 mm, T min 119.1 mm; secondary dimension is E max 117.0 mm, E min 116.0 mm; equivalence or compatibility note is 1 Thread turn, recorded from its source on 2026-08-12. - **Specification ID:** 120-400 - **Specification type:** neck_finish _(our reading, not quoted from the source)_ - **Description:** 120 mm neck, 400 series (1 thread turn) - **Primary dimension:** T max 120.0 mm, T min 119.1 mm - **Secondary dimension:** E max 117.0 mm, E min 116.0 mm - **Equivalence or compatibility note:** 1 Thread turn - **Additional data:** 400H max 17.80 mm, 400H min 17.00 mm; S max 1.90 mm, S min 1.14 mm; I min 105.0 mm; 5 threads/in. ## What the source says > 120 | 120.0 | 119.1 | 117.0 | 116.0 | 17.80 | 17.00 | | | | | 1.90 | 1.14 | 105.0 | 5 ## Source - https://www.contapack.com.au/SPI-Neck-Finishes.html Last verified: 2026-08-12. Review by: 2028-08-11. Part of [Packaging specification equivalence: neck finishes, corrugated grades and pallet standards](https://referencesource.org/packaging-material-specification-equivalence/).