# Toggle latches and draw latches: Ganter GN 831 size 100 dimensions and mounting, McMaster-Carr draw latch ranges, Southco catalog notes

> What are the dimensions and mounting hole size of a GN 831 toggle latch, and what ranges do draw latches come in?

- Category: Hardware › Hinges & latches
- Kind: Standard part
- Basis: Ganter's GN 831 toggle latch page (size 100), the option lists on McMaster-Carr's draw latch page, and a Southco draw-latch catalog excerpt; numbers only
- Page: https://xemstudio.com/objects/toggle-latches-gn-831-and-draw-latches/ · JSON: https://xemstudio.com/api/geometry?object=toggle-latches-gn-831-and-draw-latches · Plain text: https://xemstudio.com/objects/toggle-latches-gn-831-and-draw-latches/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/)

**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

- Ganter GN 831 size 100, in the symbols and order Ganter prints (no units printed; mm assumed from the decimal-comma values): holding capacity FH 1000 N; b1 25.5, b2 22, b3 26, b4 14, d 4.2; h1 18.5, h2 8.5, h3 21.5, h4 25.5; l1 min 67 (types A and SV) or 74 (type S), l2 min 56 or 63; l3 19.5; l4 min 31 or 38 and l5 min 54 or 61 (coding 2); m1 14.3, m2 7, m3 4, m4 8; r 51; w1 ≈ 5.5 (stroke) and w2 ≈ 12 (A, SV) or 8 (S) (adjustable range). The page does not label any column as hook, bolt, mounting hole or closing, so d = 4.2 is not called a hole size here. It describes the clamping hook as pulling parts together 'by up to 5 mm' while the table lists w1 ≈ 5.5, and never defines 'coding 1 / 2', so these are shown as printed. Only size 100 appeared in the table the filter returned; other GN 831 sizes are not shown.
- McMaster-Carr's draw latch page prints option lists, not part rows: overall length 1-7/16 to 2-3/4 in, overall width 1/2 to 5 in, projection 1/16 to 2-3/8 in, latching distance 3/16 to 1-13/16 in, mounting screws No. 2 to 5/16 in and M3 to M10, and weight capacity bins; strike plate material is listed but no strike plate or hole spacing dimension. The page does not say which values go together; use the part page for a particular latch.
- The Southco numbers are caption values from a draw-latch catalog excerpt hosted by NauticExpo (the host page titles it 'C7 draw latch'): four Ø4.3 mm mounting holes, Ø4 rivets or M4 screws for the small size and Ø5 rivets or M5 screws for the large, clamping force 49 N (small) and 176 N (large). The excerpt did not print part numbers, so which latch each value belongs to is not stated; they are quoted only as read. Southco's own tables were not read.
- Hold-down toggle clamps are on toggle-clamps-hold-down; push-to-open latches on drill-in-push-to-open-latches and southco-93-push-to-close-latch; magnetic touch latches on sugatsune-lamp-touch-latches. No file: the hook, lever and catch shapes are not given as numbers. McMaster-Carr sells draw latches and toggle latch clamps 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 |
|---|---|---|---|---|
| mounting | Ganter GN 831 size 100: b1 25.5, b2 22, b3 26, d 4.2 (symbols not defined on the page) | panel or frame; hole positions per Ganter's drawing | designed | all |

## Sizes

| source | load / force | widths, diameters | heights | lengths, travel |
|---|---|---|---|---|
| Ganter GN 831 size 100 (table 1) | FH 1000 N | b1 25.5; b2 22; b3 26; b4 14; d 4.2 | h1 18.5; h2 8.5; h3 21.5; h4 25.5 | l1 min 67 (A / SV), 74 (S); l2 min 56 (A / SV), 63 (S) |
| Ganter GN 831 size 100 (table 2) | — | l3 19.5; l4 min 31 (A / SV), 38 (S); l5 min 54 (A / SV), 61 (S) | m1 14.3; m2 7; m3 4; m4 8; r 51 | w1 ≈ 5.5 (stroke); w2 ≈ 12 (A / SV), 8 (S) (adjustable range) |
| McMaster-Carr draw latches (option lists, in) | weight capacity bins: under 500 lb to 3,000 lb and over; or not rated | overall length: 1-7/16, 1-5/8, 1-3/4, 1-7/8, 2, 2-1/16 ... 2-23/32, 2-3/4 | overall width: 1/2, 9/16, 11/16, 3/4 ... 4, 4-1/2, 5 in | projection: 1/16 to 2-3/8; latching distance: 3/16 to 1-13/16; mounting screws No. 2 to 1/4, 5/16, M3 to M10 |
| Southco draw latch excerpt (catalog caption values) | clamping force: small 49 N (11 lbf); large 176 N (40 lbf) | four mounting holes Ø4.3 mm; Ø4 rivets or M4 (No. 8) screws (small); Ø5 rivets or M5 (No. 10) screws (large) | latched dimension 15.1 mm (.60 in); latch assembly 164 mm (6.45 in); keeper installation 17.5 ±0.1 and 72 ±3 mm (unlabelled) | part number-to-size link not printed |

## Where the files are

- Ganter: [GN 831 toggle latches, steel / stainless steel: size 100, holding capacity FH, b1 to b4, d, h1 to h4, l1 to l5, m1 to m4, r, w1, w2 (types A, SV, S)](https://www.ganternorm.com/en/products/product-family/Stainless-Steel/GN-831-Toggle-latches-Steel-Stainless-Steel) — web — Maker product page; numbers only. Only size 100 appears in the filtered table; no units printed
- McMaster-Carr: [Draw latches (free STEP/IGES per part, for your own design use; no redistribution)](https://www.mcmaster.com/draw-latches) — STEP, IGES, PDF — McMaster-Carr site terms: personal design use, no redistribution (verify at link)
- McMaster-Carr: [Toggle latch clamps (free STEP/IGES per part, for your own design use; no redistribution)](https://www.mcmaster.com/products/toggle-latch-clamps/) — STEP, IGES, PDF — McMaster-Carr site terms: personal design use, no redistribution (verify at link)
- Southco (via a catalog excerpt): [Draw latch catalog excerpt: mounting holes Ø4.3 (4 holes), M4 / Ø4 rivets (small), M5 / Ø5 rivets (large), clamping force 49 N (small) and 176 N (large)](https://pdf.nauticexpo.com/pdf/southco/c7-draw-latch/22514-91219.html) — web — Catalog excerpt; used for the quoted notes only

## Questions

**What is the holding capacity of a GN 831 size 100 toggle latch?**

FH = 1000 N on Ganter's page; stroke w1 ≈ 5.5 and adjustable range w2 ≈ 12 (types A, SV) or 8 (type S).

**What mounting hole size does a Southco draw latch use?**

The catalog excerpt read prints four Ø4.3 mm mounting holes with M4 or Ø4 rivets for the small size and M5 or Ø5 for the large; its part numbers are not printed, so check the latch's own sheet.

**What is the difference between a toggle clamp and a toggle latch?**

Hold-down toggle clamps (toggle-clamps-hold-down) press a work piece down; toggle (draw) latches pull a lid or door shut. Both are linked on this page.

## Fits with

- [Hold-down toggle clamps: DESTACO 201, 202, 2002, 207, 210, 247, 267 and Good Hand GH-101 / GH-201: holding capacity, spindle thread, heights](https://xemstudio.com/objects/toggle-clamps-hold-down/)
- [Ø10 mm drill-in push-to-open latches (Haefele K Push Tech, DTC, Titus): bore, throw, part numbers](https://xemstudio.com/objects/drill-in-push-to-open-latches/)
- [Southco 93 push-to-close latch: Ø25.5 mm hole, 1"-20 nut, keeper, door thickness; E4 touch latch panel ranges](https://xemstudio.com/objects/southco-93-push-to-close-latch/)
- [Sugatsune / Lamp magnetic touch latches ML-120, ML-30, MLC-100: stroke, body size, forces](https://xemstudio.com/objects/sugatsune-lamp-touch-latches/)
- [Blum TIP-ON for doors (push-to-open): Ø10 bore, stroke, door gap, catch plate, adapter plates](https://xemstudio.com/objects/blum-tip-on-for-doors/)
- [Butt hinges: leaf height, leaf width, overall width, leaf thickness and screw count (McMaster-Carr template and mortise-mount hinges) + door-size chart](https://xemstudio.com/objects/butt-hinges-sizes-and-leaf-widths/)
- [Continuous (piano) hinges: open width, thickness, pin diameter, knuckle length and standard lengths (Series 1000, Monroe list, McMaster-Carr options)](https://xemstudio.com/objects/continuous-piano-hinges/)