Mason jar screw band, regular mouth (70-450 thread) — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/mason-jar-band/  (CC BY 4.0)
Basis: 70-450 continuous-thread closure drawing (Comet Tool 1340-0109): root T 2.804 in, crest E 2.700 in, 4 TPI, 1 1/4 turns; Ball band height 9/16 in regular, 5/8 in wide
Catalog version: 2026-10-20

Sizes: see table below
- Regular-mouth band: Ø71.53 outside, 14.29 (9/16 in) tall, 0.154 mm sheet.
- Internal thread: 4 TPI (6.35 mm pitch), single start, right hand, 1¼ turns; root Ø71.22, crest Ø68.58 (1.32 deep), drawn as a 60° L-form.
- The wide-mouth band is 5/8 in (15.88) tall; it has no file, because no 86 mm finish drawing with its thread was found.
- Not drawn: the band's top flange and its aperture (not published).

band  outside_mm  height_mm  thread  root_mm  crest_mm  turns
regular (70)  71.53  14.29  4 TPI (6.35) RH single start  71.22  68.58  1.25
wide (86)  None  15.88  None  None  None  None

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- Wikipedia: Mason jar — web — CC BY-SA 4.0 (text) — https://en.wikipedia.org/wiki/Mason_jar
- Ball (Newell Brands): Ball canning jars and lids — web — Ball site [verify license at link] — https://www.ballmasonjars.com/
- Comet Tool Co.: 70-450 continuous-thread closure drawing (part 1340-0109): T 2.804 in at skirt, E 2.700 in at midpoint, 4 TPI (.250 pitch), 1 1/4 turns — PDF — manufacturer drawing [verify license at link] — https://www.comet-tool.com/wp-content/uploads/2021/08/70-450-0109-merged.pdf
- WebstaurantStore (Ball 30000): Ball regular-mouth lids and bands: top diameter 2 3/4 in, height 9/16 in — web — listing [verify license at link] — https://www.webstaurantstore.com/ball-30000-regular-mouth-replacement-lids-and-bands-pack/52730000.html
- WebstaurantStore (Ball 40000ZFP): Ball wide-mouth lids and bands: top diameter 3 3/8 in, height 5/8 in — web — listing [verify license at link] — https://www.webstaurantstore.com/ball-40000zfp-wide-mouth-lids-and-bands-for-canning-jars-pack/52740000.html
- Healthy Canning: Lids for home canning: regular mouth 70 mm (2 3/4 in), wide mouth 86 mm (3 3/8 in) — web — site [verify license at link] — https://www.healthycanning.com/lids-for-home-canning/
- The Cary Company: 70G-450 metal lid spec 30WG70 (GPI 450 finish; tinplate minimum nominal thickness .00605 in) — PDF — distributor spec [verify license at link] — https://www.thecarycompany.com/media/pdf/specs/30WG70.pdf
- Long Earth Society: Engine builds (videos and write-ups) — web, video — LES site — https://longearthsociety.com/engineering/

Free files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/mason-jar-band/index.json
API: https://xemstudio.com/api/geometry?object=mason-jar-band