# Metric cable glands M12–M63: thread, panel hole (EN 60423), cable range, height, key size + hole gauge

> What mounting hole does an M12, M16, M20, M25 or M32 cable gland need, and what cable does it take?

- Category: Electronic components › Panel cutouts
- Kind: Standard part
- Basis: Lapp technical table T21 (EN 60423 and DIN 13 metric thread and hole), VIOX's standard nylon metric series (cable range, thread length, height, key size); hole gauge as a file, glands themselves numbers only
- Page: https://xemstudio.com/objects/cable-glands-metric-thread/ · JSON: https://xemstudio.com/api/geometry?object=cable-glands-metric-thread · Plain text: https://xemstudio.com/objects/cable-glands-metric-thread/sheet.txt
- License: dimension sheet CC BY 4.0 (Xem Studio); files CC BY 4.0 or their publisher's license
- Use in every chat: add https://xemstudio.com/mcp as a connector (https://xemstudio.com/use-with-ai/)

## Overall (mm)

| length | width | height |
|---|---|---|
| 332.7 | 79.4 | 3.0 |

**Exact dimensions.** Every file is drawn at true size with no tolerance added. The holes and pins that meet another part are listed below under Mating features, with the fit each joint needs; open those by your process's clearance before making the part.

## Notes

- Thread columns are Lapp's table T21: D1 is the thread outer diameter, D2 the core diameter, D3 the panel hole, printed in the table as, e.g., '12.3 –0.2' (the number shown with its tolerance symbol as printed). M12, M16, M20, M25, M32, M40, M50, M63, M75, M90, M110 are the EN 60423 series (screw connections to EN 50262); M18, M24, M30, M36, M45, M56, M72, M80, M105 are DIN 13 sizes (screw connections to DIN 89280). The hole gauge uses the printed D3 for M12–M63.
- Cable range, thread length, height and key size are VIOX's standard nylon series, one vendor's numbers, so other makers (Lapp Skintop, Jacob, Heyco) differ. Key size is 'body / cap' (the hex on the thread body and the hex on the dome cap). VIOX's chart cites no standard for these and gives no panel hole for its metric glands; the hole shown here is Lapp's.
- Thread lengths in the table are VIOX's. Lapp's metric gland dimensions (wrench size, length, clamping range per article) are in its catalogue pages that could not be read, and Jacob's PERFECT datasheet prints columns A, C, L, SW1, SW2, H without defining them, so neither is reproduced.
- Also published in T21 but not drawn: installation space Ø A for each wrench size (e.g. SW 22 → Ø 25.0 mm), tightening torques (plastic M12 1.5 Nm to M63 16 Nm; metal M12 8 Nm to M63 20 Nm), and NPT hole sizes.
- PG glands are on the page cable-glands-pg-thread. McMaster-Carr's cord-grip and cable-gland pages (M12, M32, M40 and PG sizes appear in its thread-size URLs) carry per-part STEP; linked, not copied.

## Mating features (exact size; open press / slide / run / socket by your process clearance, leave designed and clamp as drawn)

| feature | exact | mates with | fit | files |
|---|---|---|---|---|
| thread | M12 … M63 × 1.5 (EN 60423) | panel hole Ø12.3 (M12), 16.3, 20.3, 25.3, 32.3, 40.4 (M40), 50.4, 63.4 (M63), −0.2 / −0.3 as printed | designed | metric-gland-hole-gauge* |

## Sizes

| thread | standard | thread OD D1 (mm) | core D2 (mm) | panel hole D3 (mm, Lapp) | VIOX model | cable range (mm) | thread length (mm) | height (mm) | key size body / cap (mm) |
|---|---|---|---|---|---|---|---|---|---|
| M12 × 1.5 | EN 60423 | 12 | 10.6 | 12.3 (–0.2) | 1001-M1265 | 3–6.5 | 8.5 | 26 | 18/15 |
| M12 × 1.5 | EN 60423 | 12 | 10.6 | 12.3 (–0.2) | 1001-M1208 | 4–8 | 8.5 | 26 | 18/19 |
| M16 × 1.5 | EN 60423 | 16 | 14.6 | 16.3 (–0.2) | 1001-M1607 | 3–7 | 10 | 29 | 22/19 |
| M16 × 1.5 | EN 60423 | 16 | 14.6 | 16.3 (–0.2) | 1001-M1608 | 4–8 | 10 | 29 | 22/19 |
| M16 × 1.5 | EN 60423 | 16 | 14.6 | 16.3 (–0.2) | 1001-M1610 | 5–10 | 10 | 30 | 22/22 |
| M20 × 1.5 | EN 60423 | 20 | 18.6 | 20.3 (–0.2) | 1001-M2010 | 5–10 | 11 | 34 | 27/27 |
| M20 × 1.5 | EN 60423 | 20 | 18.6 | 20.3 (–0.2) | 1001-M2012 | 6–12 | 10.5 | 30 | 27/24 |
| M20 × 1.5 | EN 60423 | 20 | 18.6 | 20.3 (–0.2) | 1001-M2014 | 10–14 | 11 | 34 | 27/27 |
| M25 × 1.5 | EN 60423 | 25 | 23.6 | 25.3 (–0.2) | 1001-M2513 | 7–13 | 12 | 36 | 33/33 |
| M25 × 1.5 | EN 60423 | 25 | 23.6 | 25.3 (–0.2) | 1001-M2514 | 10–14 | 11 | 34 | 33/27 |
| M25 × 1.5 | EN 60423 | 25 | 23.6 | 25.3 (–0.2) | 1001-M2518 | 13–18 | 12 | 36 | 33/33 |
| M32 × 1.5 | EN 60423 | 32 | 30.6 | 32.3 (–0.2) | 1001-M3218 | 13–18 | 15 | 42 | 41/41 |
| M32 × 1.5 | EN 60423 | 32 | 30.6 | 32.3 (–0.2) | 1001-M3225 | 18–25 | 15 | 42 | 41/41 |
| M40 × 1.5 | EN 60423 | 40 | 38.6 | 40.4 (–0.3) | 1001-M4025 | 18–25 | 15 | 46 | 50/52 |
| M40 × 1.5 | EN 60423 | 40 | 38.6 | 40.4 (–0.3) | 1001-M4031 | 22–31 | 15 | 46 | 50/52 |
| M50 × 1.5 | EN 60423 | 50 | 48.6 | 50.4 (–0.3) | 1001-M5028 | 22–28 | 16 | 54 | 62/62 |
| M50 × 1.5 | EN 60423 | 50 | 48.6 | 50.4 (–0.3) | 1001-M5041 | 31–41 | 16 | 54 | 62/62 |
| M63 × 1.5 | EN 60423 | 63 | 61.6 | 63.4 (–0.3) | 1001-M6338 | 29–38 | 18 | 56 | 75/65 |
| M63 × 1.5 | EN 60423 | 63 | 61.6 | 63.4 (–0.3) | 1001-M6345 | 35–45 | 18 | 56 | 75/65 |
| M18 × 1.5 | DIN 13 | 18 | 16.4 | 18.3 (–0.2) | — | — | — | — | — |
| M24 × 1.5 | DIN 13 | 24 | 22.4 | 24.3 (–0.2) | — | — | — | — | — |
| M30 × 2 | DIN 13 | 30 | 27.8 | 30.3 (–0.2) | — | — | — | — | — |
| M36 × 2 | DIN 13 | 36 | 33.8 | 36.3 (–0.2) | — | — | — | — | — |
| M45 × 2 | DIN 13 | 45 | 42.8 | 45.4 (–0.3) | — | — | — | — | — |
| M56 × 2 | DIN 13 | 56 | 53.8 | 56.4 (–0.3) | — | — | — | — | — |
| M72 × 2 | DIN 13 | 72 | 69.8 | 72.5 (–0.4) | — | — | — | — | — |
| M80 × 2 | DIN 13 | 80 | 77.8 | 80.5 (–0.4) | — | — | — | — | — |
| M105 × 2 | DIN 13 | 105 | 102.8 | 105.5 (–0.4) | — | — | — | — | — |
| M75 × 1.5 | EN 60423 | 75 | 73.6 | 75.4 (–0.3) | — | — | — | — | — |
| M90 × 2 | EN 60423 | 90 | 88.8 | 90.4 (–0.3) | — | — | — | — | — |
| M110 × 2 | EN 60423 | 110 | 108.8 | 110.4 (–0.3) | — | — | — | — | — |

## Where the files are

- Lapp: [Technical table T21: thread dimensions for cable glands (metric EN 60423 / DIN 13, PG DIN 40430, NPT), tightening torques and installation dimensions; D1 outer diameter, pitch, D2 core diameter, D3 hole diameter](https://www.sos.sk/docs/1/1937/T21 Thread dimensions for cable glands_Tightening torques and installation dimensions for cable glands.pdf) — web — Maker technical table, hosted by a distributor; numbers only
- VIOX: [Cable gland size chart: standard nylon metric series (cable range, thread length, height, key size) and brass PG series](https://viox.com/fr/cable-gland-size-chart/) — web — Vendor chart; the vendor states hole sizes are for its own series
- McMaster-Carr: [Cord grips and cable glands (free STEP/IGES per part, for your own design use; no redistribution)](https://www.mcmaster.com/products/cord-grips/) — STEP, IGES, PDF — McMaster-Carr site terms: personal design use, no redistribution (verify at link)

## Free STEP/STL (1 parts, CC BY 4.0, Xem Studio)

Index: https://xemstudio.com/files/hardware/cable-glands-metric-thread/index.json

- metric-gland-hole-gauge-m12-m63: [STEP](https://xemstudio.com/files/hardware/cable-glands-metric-thread/metric-gland-hole-gauge-m12-m63.step) · [STL](https://xemstudio.com/files/hardware/cable-glands-metric-thread/metric-gland-hole-gauge-m12-m63.stl) — hole gauge plate, 332.7 × 79.4 × 3 mm, eight holes at the Lapp T21 (EN 60423) hole diameters 12.3, 16.3, 20.3, 25.3, 32.3, 40.4, 50.4, 63.4 mm (M12, M16, M20, M25, M32, M40, M50, M63), smallest first, 8 mm between hole edges; plate thickness and spacing are Xem choices

## Questions

**What hole for an M20 cable gland?**

Lapp's table prints 20.3 mm (thread OD 20 mm, pitch 1.5 mm, EN 60423).

**What cable fits an M16 gland?**

VIOX's standard M16 nylon glands cover 3–7, 4–8 and 5–10 mm cable depending on the model.

**How tall is an M25 cable gland?**

34–36 mm for VIOX's standard nylon M25 series; other makers differ.

## Fits with

- [PG cable glands: thread and panel hole PG7–PG48 (DIN 40430), height, wrench flat, cable range + hole gauge](https://xemstudio.com/objects/cable-glands-pg-thread/)
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- [Tri-clamp probe gland caps: Ø4, Ø6 and ¼ in probes, 1 to 3 per cap](https://xemstudio.com/objects/tri-clamp-probe-gland-caps/)
- [Rivet nuts (blind threaded inserts), flat head: hole size, grip range, body and flange dimensions, M3–M12 and #6-32 to 3/8-16](https://xemstudio.com/objects/rivet-nuts-flat-head/)
- [Rubber grommets: panel hole, panel thickness, ID, head diameter, height (Heyco inch, Essentra metric) + hole gauges](https://xemstudio.com/objects/rubber-grommets-panel-hole/)