# PG cable glands: thread and panel hole PG7–PG48 (DIN 40430), height, wrench flat, cable range + hole gauge

> What mounting hole does a PG7, PG9, PG11, PG13.5, PG16 or PG21 cable gland need, and how tall is it?

- Category: Electronic components › Panel cutouts
- Kind: Standard part
- Basis: Lapp technical table T21 (DIN 40430 PG thread and hole), Heyco brass PG cordgrip catalogue pages (height, thread length, wrench flat, cable range); hole gauge as a file, glands themselves numbers only
- Page: https://xemstudio.com/objects/cable-glands-pg-thread/ · JSON: https://xemstudio.com/api/geometry?object=cable-glands-pg-thread · Plain text: https://xemstudio.com/objects/cable-glands-pg-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 |
|---|---|---|
| 276.1 | 63.4 | 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

- PG is the older cable-gland thread (DIN 40430 in Lapp's table), with the pitches below; it is not interchangeable with metric. D1 is the thread outer diameter, D2 the core diameter, D3 the panel hole. Lapp prints D3 as, e.g., '12.8 –0.2' and the value shown here is the number as printed with its tolerance symbol; the gauge file uses the printed D3.
- Heyco columns are the brass PG hub range (standard thread, series 4530–4554): clearance hole (a different series, Heyco's high-temp brass hubs, prints 12.6, 15.3, 18.7, 20.5, 22.6, 28.4, 37.2, 47.2 mm, about 0.1 mm larger), height as 'max O.A. length', thread length and wrench flat (hex across flats). The short-thread series 14530–14554 has its own height and thread length, shown in the columns (thread length 6.0 mm on PG 7–16). Cable range is per part number; each PG size comes in 2–4 clamp ranges, shown in order. Heyco's PG 13.5 prints 21.0 mm hole for two ranges and 20.4 for the 11.0–15.0 range.
- PG 19 and PG 25 are not in Lapp's table and Heyco's pages used here do not list them; VIOX's chart prints thread OD 25 and 32 mm for them but cites no standard, so they are left out. PG 42 and PG 48 have thread data only.
- Heyco's heights and wrench flats are for Heyco's glands; other makers' will differ. Use this as an envelope check, not as the gland drawing. Not published here: dome-nut shape, seal geometry, locknut size.
- Metric glands are on the page cable-glands-metric-thread. McMaster-Carr's cord-grip pages cover PG sizes (PG 16, PG 36 and PG 42 appear in its thread-size URLs) with 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 | PG7 Ø12.5 / 1.27 … PG36 Ø47.0 / 1.588 (DIN 40430 per Lapp) | panel hole Ø12.8 (PG7), 15.5, 18.9, 20.7 (PG13.5), 22.8, 28.6, 37.4, 47.4 (PG36), −0.2 / −0.3 as printed | designed | pg-gland-hole-gauge* |

## Sizes

| PG size | thread OD D1 (mm) | pitch (mm) | core D2 (mm) | panel hole D3 (mm, Lapp) | Heyco hole (mm) | Heyco height, standard thread (mm) | Heyco height, short thread (mm) | thread length, standard (mm) | thread length, short (mm) | wrench flat (mm) | cable ranges (mm) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| PG 7 | 12.5 | 1.27 | 11.3 | 12.8 (–0.2) | 12.5 | 27.0 | 23.0 | 10.0 | 6.0 | 15 | 3.5–5.0 / 5.0–6.5 / 6.5–8.0 |
| PG 9 | 15.2 | 1.41 | 13.9 | 15.5 (–0.2) | 15.2 | 30.0 (32.0 for 8.0–10.5) | 26.0 (28.0 for 8.0–10.5) | 10.0 | 6.0 | 18 | 3.5–4.5 / 4.5–6.0 / 6.0–8.0 / 8.0–10.5 |
| PG 11 | 18.6 | 1.41 | 17.3 | 18.9 (–0.2) | 18.6 | 31.0 | 27.0 | 10.0 | 6.0 | 21 | 4.0–5.5 / 5.5–8.5 / 8.5–12.0 |
| PG 13.5 | 20.4 | 1.41 | 19.1 | 20.7 (–0.2) | 21.0 (20.4 for 11.0–15.0) | 31.0 (33.0 for 11.0–15.0) | 27.0 (29.0 for 11.0–15.0) | 10.0 | 6.0 | 24 | 6.0–8.0 / 8.0–11.0 / 11.0–15.0 |
| PG 16 | 22.5 | 1.41 | 21.2 | 22.8 (–0.2) | 22.5 | 33.0 | 29.0 | 10.0 | 6.0 | 24 | 6.0–8.0 / 8.0–11.0 / 11.0–15.0 |
| PG 21 | 28.3 | 1.588 | 26.8 | 28.6 (–0.2) | 28.3 | 40.0 | 35.5 | 12.0 | 7.5 | 30 | 9.5–12.5 / 12.5–16.0 / 16.0–20.5 |
| PG 29 | 37.0 | 1.588 | 35.5 | 37.4 (–0.3) | 37.3 | 40.0 | 36.0 | 12.0 | 8.0 | 38 | 16.0–19.0 / 19.0–23.0 / 23.0–27.5 |
| PG 36 | 47.0 | 1.588 | 45.5 | 47.4 (–0.3) | 47.6 | 47.0 | 47.0 | 15.0 | 8.0 | 50 | 21.5–26.0 / 26.0–30.5 / 30.5–35.0 |
| PG 42 | 54.0 | 1.588 | 52.5 | 54.4 (–0.3) | — | — | — | — | — | — | — |
| PG 48 | 59.3 | 1.588 | 57.8 | 59.7 (–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
- Heyco: [Heyco-Tite brass liquid-tight cordgrips, PG hubs (4530–4554 standard thread, 14530–14554 short thread): clearance hole, height, thread length, wrench flat, cable range](https://www.heyco.com/products/liquid-tight-cordgrips/nylon-cordgrips/heyco-tite-brass-liquid-tight-cordgrips-pg-hubs) — web — Publisher's page; dimensions are facts
- Heyco: [Brass high-temp cordgrips, PG hubs (14945–14971): clearance hole, max overall length, thread length, wrench flat, cable range](https://www.heyco.com/wp-content/uploads/2024/09/Brass-High-Temp-Cordgrips-PG.pdf) — web — Publisher's page; dimensions are facts
- 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-pg-thread/index.json

- pg-gland-hole-gauge-pg7-pg36: [STEP](https://xemstudio.com/files/hardware/cable-glands-pg-thread/pg-gland-hole-gauge-pg7-pg36.step) · [STL](https://xemstudio.com/files/hardware/cable-glands-pg-thread/pg-gland-hole-gauge-pg7-pg36.stl) — hole gauge plate, 276.1 × 63.4 × 3 mm, eight holes at the Lapp T21 (DIN 40430) hole diameters 12.8, 15.5, 18.9, 20.7, 22.8, 28.6, 37.4, 47.4 mm (PG 7, 9, 11, 13.5, 16, 21, 29, 36), smallest first, 8 mm between hole edges; plate thickness and spacing are Xem choices

## Questions

**What hole for a PG9 cable gland?**

Lapp prints a 15.5 mm panel hole for PG 9 (thread OD 15.2 mm); Heyco prints 15.2 mm for its brass PG 9.

**What is the thread diameter of PG13.5?**

20.4 mm outer diameter, 1.41 mm pitch (DIN 40430, Lapp T21).

**What size wrench for PG16?**

Heyco's brass PG 16 has a 24 mm wrench flat; other makers can differ.

## Fits with

- [Metric cable glands M12–M63: thread, panel hole (EN 60423), cable range, height, key size + hole gauge](https://xemstudio.com/objects/cable-glands-metric-thread/)
- [Standard cable and plug sizes: USB-C, USB-A, Micro-B, Lightning, HDMI, RJ45, DC barrel, cable and power-cord diameters](https://xemstudio.com/objects/cable-and-plug-sizes/)
- [Tri-clamp caps with PG13.5 probe ports (12 mm pH, dissolved O₂ and CO₂ probes): 1½ to 4 in](https://xemstudio.com/objects/tri-clamp-pg13-5-probe-ports/)
- [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/)
- [Rubber grommets: panel hole, panel thickness, ID, head diameter, height (Heyco inch, Essentra metric) + hole gauges](https://xemstudio.com/objects/rubber-grommets-panel-hole/)