# Indexing plungers GN 617: pin diameter 5 to 10 mm, thread, A/F, lengths and spring load (steel and stainless)

> What are the dimensions of a GN 617 indexing plunger: pin diameter, thread, overall length, hex size and spring load?

- Category: Hardware › Fasteners
- Kind: Standard part
- Basis: Ganter's GN 617 table (d1 to l7, A/F, spring loads) agreeing with the Elesa sheet and J.W. Winco's data sheet on every number, Winco for the stainless loads; labels as printed (Ganter does not define l1 to l7); numbers only
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**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

- GN 617 is the indexing plunger: a threaded body with a spring-loaded hardened pin that is pulled by a knob to release the indexed part and drops into a hole in the index plate when released. This is Ganter's 'without rest position' version (the pin cannot be parked retracted); GN 617.1 is a lock-out version and GN 817 the version with rest position for higher axial loads (Ganter points to GN 817 for higher forces). Versions: A with plastic knob, AK with knob and lock nut, G without knob (threaded drive rod d4, for your own knob or a mechanism), GK the same with lock nut; AN / AKN are stainless-knob variants. Sizes: pin Ø 5, 6, 8, 10 mm.
- The dimension columns are exactly as Ganter prints them (d1 pin, d2 thread, d3, d4 only on G / GK, e, l1 approximate, l2 to l7, A/F) because Ganter's page does not define l1 to l7. A cross-check is possible only on e: it equals A/F divided by cos 30° (across corners of the lock-nut hex) on every size. The Elesa sheet prints the same numbers under different column labels (l5 = 6 / 10 / 12 / 12 for the G / GK rod length, l6 = 15 / 17 / 23 / 30, no l7) and an extra last value per row that is not labelled in the text read, so l-labels are not comparable between makers; the values are. Spring loads steel (initial / end) agree between Ganter, Elesa and Winco (7 / 17, 9 / 24, 11 / 30, 19 / 45 N); the stainless loads are Winco's (6 / 15, 8 / 21, 9 / 26, 17 / 40 N). Loads are approximate.
- The mating hole: Ganter gives the pin −0.02 / −0.05 mm (d1) and a guide (index plate) bore H7. That pair is in the mating table below; the thread d2 is a fine thread (M10 × 1, M12 × 1.5, M16 × 1.5, M20 × 1.5), so the mounting hole is not an ISO coarse tap drill. A distance bushing GN 609.5 (stainless) is offered for mounting on thin sheet.
- No file: which of l1 to l7 is the thread length, the knob offset or the pin stroke is not stated, so a drawing would be invented. Ganter publishes CAD per part on the GN 617 product page (linked). Not on this page: GN 617.1, GN 817 and the inch sizes (Elesa has an inch sheet; not read).

## 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 |
|---|---|---|---|---|
| plunger pin Ø | Ø5 / Ø6 / Ø8 / Ø10, tolerance −0.02 / −0.05 (Ganter) | index-plate bore, suggested tolerance H7 (Ganter) | slide | all |

## Sizes

| pin Ø d1 (−0.02 / −0.05), mm | thread d2 | d3 | d4 (G / GK rod thread) | e | l1 ≈ | l2 | l3 | l4 | l5 min. | l6 | l7 | A/F, mm | spring load steel initial / end, N | spring load stainless initial / end, N |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 5 | M10 × 1 | 21 | M5 | 13.8 | 45 | 5 | 17 | 5 | 15 | 6 | 4.5 | 12 | 7 / 17 | 6 / 15 |
| 6 | M12 × 1.5 | 25 | M6 | 16.2 | 54.5 | 6 | 20 | 6 | 17 | 10 | 8 | 14 | 9 / 24 | 8 / 21 |
| 8 | M16 × 1.5 | 31 | M8 | 21.9 | 69 | 8 | 26 | 8 | 23 | 12 | 10 | 19 | 11 / 30 | 9 / 26 |
| 10 | M20 × 1.5 | 31 | M8 | 25.4 | 80 | 10 | 33 | 10 | 30 | 12 | 12 | 22 | 19 / 45 | 17 / 40 |

## Where the files are

- Ganter: [GN 617 Indexing plungers, steel, plastic knob, without rest position: d1 to l7, A/F, spring load](https://ganternorm.com/en/products/3.1-Indexing-locking-blocking-with-pins-and-ball-shaped-elements/Indexing-plungers/GN-617-Indexing-plunger-Steel-Plastic-knob) — web — Publisher's page; dimensions are facts
- Elesa: [GN 617 indexing plungers sheet: A, AK, G, GK versions, d1 to l6, sw, loads](https://www.elesa.com/siteassets/PDF/PDF_EN/GN 617.pdf) — web — Publisher's page; dimensions are facts
- J.W. Winco (distributor copy): [GN 617 indexing plungers: sizes 5, 6, 8, 10 with steel and stainless spring loads](https://d26s8effnbilat.cloudfront.net/Files/product/29150/tab/1_GN617.pdf) — web — Publisher's page; dimensions are facts
- Ehorst: [GN 617-6-AK product page (d1 6, M12 x 1.5, d3 25, d4 M6, e 16.2, l1 54.5, A/F 14)](https://ehorst.de/nl/Rastbolzen-GN-617-6-AK-mit-Kontermutter-mit-Knopf-1076315.html) — web — Publisher's page; dimensions are facts

## Questions

**What are the dimensions of a GN 617-6-AK indexing plunger?**

Pin Ø6 mm, thread M12 × 1.5, knob d3 25 mm, overall l1 about 54.5 mm, lock nut A/F 14 (e 16.2), spring load 9 N initial / 24 N end.

**What hole does a GN 617 pin go into?**

Ganter gives the pin as −0.02 / −0.05 mm and the guide bore as H7.

**What is the difference between GN 617 and GN 817?**

GN 617 has no rest position; Ganter points to GN 817 (with rest position) for higher forces.

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