Star knobs, DIN 6336 (cast iron), Ø32–80: thread, bore, height and depth — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/star-knobs-din-6336/  (sheet CC BY 4.0)
Basis: Ganter's DIN 6336 cast iron star knob page (five sizes, thread and bore options); numbers only
Catalog version: 2026-10-20

Sizes: see table below
- Columns are Ganter's own symbols in the order printed: d1 (knob diameter), d2 thread for the threaded types D and E, d3 H7 bore for the bored types B and C, then d4, h1, h2 (min.), t1 (min.) and t2. The page prints no units and does not define d4, h1, h2, t1 or t2 in text (its drawing is an image); the values are taken as mm, which is the unit of d1 = 32 to 80 on star knobs, but the page does not say so. Sizes 50, 63 and 80 are offered with two thread / bore options (for example M 8 or M 10 on d1 = 50), 32 and 40 with one.
- The table is for the cast iron knob. Ganter's datasheets for the plastic star knob (GN 6336) print their own tables; the column assignment of those PDFs could not be read reliably, so they are not shown and the two are not compared. The page also lists a size 25 for GN 6336.2 only, and its 'see also' mentions stainless, aluminum and plastic versions. Do not mix the tables.
- Types: D and E are threaded (stud or tapped), B and C are bored (H7); the page does not describe the types in text. Special bores, threads and cross holes are 'on request'.
- Related: wing nuts and wing screws (wing-nuts-din-315-asme-b18-17, wing-screws-din-316), knurled thumb screws (knurled-thumb-screws-din-464) and ball knobs (ball-knobs-din-319). No file: the star outline is not given as numbers. McMaster-Carr sells star knobs with per-part STEP; linked, not copied.

d1  d2 thread (type D / E)  d3 H7 bore (type B / C)  d4  h1  h2 min  t1 min  t2
32  M 6  B 6  12  20  9  12  10
40  M 8  B 8  14  25  12  15  13
50  M 8, M 10  B 8, B 10  18  32  15  18  16
63  M 10, M 12  B 10, B 12  20  40  19  22  20
80  M 12, M 16  B 12, B 16  25  50  23  28  20

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- Ganter: DIN 6336 star knobs, cast iron: d1, d2 (thread, Type D / E), d3 H7 (bore, Type B / C), d4, h1, h2 min, t1 min, t2; sizes 32 to 80 — web — Maker product page; numbers only. The page prints no units and does not define the symbols — https://www.ganternorm.com/en/products/2.2-Tensioning-clamping-withknobs/Star-knobs/DIN-6336-Star-knobs-Cast-iron
- McMaster-Carr: Star knobs (free STEP/IGES per part, for your own design use; no redistribution) — STEP, IGES, PDF — McMaster-Carr site terms: personal design use, no redistribution [verify license at link] — https://www.mcmaster.com/products/star-knobs/

No true-size file yet: the published figures do not fix the whole shape; a measured scan is planned.
API: https://xemstudio.com/api/geometry?object=star-knobs-din-6336