# Screw-on rubber feet and threaded rubber bumpers: Essentra SOF / BF series and Ganter GN 352.1 / 352.2 (452) sizes, thread, load

> What are the sizes of screw-on rubber feet and threaded rubber feet (bumpers): base diameter, height, screw hole or thread, and load?

- Category: Hardware › Knobs, handles & feet
- Kind: Standard part
- Basis: Essentra's screw-on feet product pages and Ganter's GN 352.1 / 352.2 sheets (JW Winco copies)
- Page: https://xemstudio.com/objects/screw-on-rubber-feet-and-bumpers/ · JSON: https://xemstudio.com/api/geometry?object=screw-on-rubber-feet-and-bumpers · Plain text: https://xemstudio.com/objects/screw-on-rubber-feet-and-bumpers/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.** True size, with no tolerance added.

## Notes

- Two kinds of rubber feet that fasten with a screw: (1) screw-on feet, a rubber or ABS foot with a clearance hole you drive a screw through (Essentra SOF- and BF- series; sizes as printed by Essentra, millimetres and inches agree on all nine), and (2) Ganter GN 352.1 / 452.1 (threaded stud) and GN 352.2 / 452.2 (tapped insert) rubber mounts, which are used as feet, bumpers, end stops and vibration mounts (zinc-plated steel cover plate for 352, stainless 1.4301 for 452; natural rubber, black, vulcanised to the plate; Shore A 55 ± 5 standard, 40 and 70 on request).
- Essentra: 'screw hole diameter' is the figure Essentra prints in its table and 'inside diameter' (0.315 / 0.343 in) a second column on the rubber feet; the sources read do not define whether the hole is a countersink or the bore, so the table repeats the labels. The base diameters come in two forms on Essentra's pages (the product-attribute and the heading values differ in the third decimal: 0.689 vs 0.69 in for SOF-15140, etc.); the table uses the attribute values. The two pages agree on every height and diameter to 0.01 in; one page lists the rubber feet as neoprene, the other as 'rubber'.
- GN 352.1 / 352.2: the tables are printed in inches for the thread (1/4-20, 5/16-18, 3/8-16) with d1 and h in millimetres (and inch values in brackets); metric-thread versions exist (e.g. GN 352-10-10-M4-E-55 is listed) but were not tabled. The two sheets disagree between each other on which d1 × h × thread combinations exist, so they are shown as separate row groups: stud version 8 rows (25 × 13 to 51 × 41), tapped version 8 rows. 'l' (stud length) and 's' (cover plate thickness) are Ganter's letters; 't' is the tapped depth. Spring rate (lbf/in) is on the sheets and is not repeated here. Rubber-metal mounts of the 351 / 451 series are on their own page.
- Numbers only: the foot profile (dome, stepped base, counterbore) is not published as numbers, so no file is made.

## Sizes

| part | type | base or rubber Ø d1, mm | height h, mm | screw hole / thread | material | max load / deflection (GN 352 only) |
|---|---|---|---|---|---|---|
| Essentra SOF-15129 | screw-on foot | 16 (0.630 in) | 7.1 (0.280 in) | screw hole Ø.310 in | rubber (neoprene) | — |
| Essentra SOF-15125 | screw-on foot | 19.1 (0.750 in) | 11.5 (0.453 in) | screw hole Ø.400 in | rubber (neoprene) | — |
| Essentra SOF-15140 | screw-on foot | 17.5 (0.689 in) | 9.5 (0.374 in) | screw hole Ø.310 in; inside Ø.315 in | rubber (neoprene) | — |
| Essentra SOF-15127 | screw-on foot | 18.5 (0.728 in) | 18.4 (0.724 in) | screw hole Ø.310 in; inside Ø.315 in | rubber (neoprene) | — |
| Essentra SOF-15111 | screw-on foot | 19.1 (0.748 in) | 15.3 (0.602 in) | screw hole Ø.310 in; inside Ø.315 in | rubber (neoprene) | — |
| Essentra SOF-15126 | screw-on foot | 22.6 (0.886 in) | 18.4 (0.724 in) | screw hole Ø.340 in; inside Ø.343 in | rubber (neoprene) | — |
| Essentra BF-1001 | screw-on foot | 39.9 (1.575 in) | 10 (0.394 in) | screw hole Ø.170 in | ABS | — |
| Essentra BF-1005 | screw-on foot | 50 (1.969 in) | 12 (0.472 in) | screw hole Ø.180 in | ABS | — |
| Essentra BF-1002 | screw-on foot | 59.9 (2.362 in) | 16 (0.630 in) | screw hole Ø.180 in | ABS | — |
| Ganter GN 352.1 / 452.1 (stud) | rubber mount, threaded stud | 25 | 13 | stud 1/4-20, l 13 mm, cover plate s 2 mm | natural rubber 55 Shore A, steel / stainless cover | max 214 lbf (952 N), deflection 2.54 mm |
| Ganter GN 352.1 / 452.1 (stud) | rubber mount, threaded stud | 25 | 19 | stud 1/4-20, l 13 mm, cover plate s 2 mm | natural rubber 55 Shore A, steel / stainless cover | max 140 lbf (623 N), deflection 3.81 mm |
| Ganter GN 352.1 / 452.1 (stud) | rubber mount, threaded stud | 25 | 25 | stud 5/16-18, l 16 mm, cover plate s 2 mm | natural rubber 55 Shore A, steel / stainless cover | max 151 lbf (672 N), deflection 6.35 mm |
| Ganter GN 352.1 / 452.1 (stud) | rubber mount, threaded stud | 38 | 19 | stud 5/16-18, l 16 mm, cover plate s 2 mm | natural rubber 55 Shore A, steel / stainless cover | max 398 lbf (1770 N), deflection 3.81 mm |
| Ganter GN 352.1 / 452.1 (stud) | rubber mount, threaded stud | 40 | 25 | stud 3/8-16, l 16 mm, cover plate s 2 mm | natural rubber 55 Shore A, steel / stainless cover | max 434 lbf (1930 N), deflection 6.35 mm |
| Ganter GN 352.1 / 452.1 (stud) | rubber mount, threaded stud | 40 | 25 | stud 5/16-18, l 16 mm, cover plate s 2 mm | natural rubber 55 Shore A, steel / stainless cover | max 434 lbf (1930 N), deflection 6.35 mm |
| Ganter GN 352.1 / 452.1 (stud) | rubber mount, threaded stud | 51 | 19 | stud 3/8-16, l 29 mm, cover plate s 2 mm | natural rubber 55 Shore A, steel / stainless cover | max 830 lbf (3692 N), deflection 3.81 mm |
| Ganter GN 352.1 / 452.1 (stud) | rubber mount, threaded stud | 51 | 41 | stud 3/8-16, l 16 mm, cover plate s 2 mm | natural rubber 55 Shore A, steel / stainless cover | max 640 lbf (2847 N), deflection 10.16 mm |
| Ganter GN 352.2 / 452.2 (tapped) | rubber mount, tapped insert | 25 | 13 | thread 1/4-20, depth t 6 mm, cover plate s 2 mm | natural rubber 55 Shore A, steel / stainless cover | max 205 lbf (912 N), deflection 2.54 mm |
| Ganter GN 352.2 / 452.2 (tapped) | rubber mount, tapped insert | 25 | 19 | thread 1/4-20, depth t 6 mm, cover plate s 2 mm | natural rubber 55 Shore A, steel / stainless cover | max 142 lbf (632 N), deflection 3.81 mm |
| Ganter GN 352.2 / 452.2 (tapped) | rubber mount, tapped insert | 25 | 25 | thread 5/16-18, depth t 8 mm, cover plate s 2 mm | natural rubber 55 Shore A, steel / stainless cover | max 190 lbf (845 N), deflection 6.35 mm |
| Ganter GN 352.2 / 452.2 (tapped) | rubber mount, tapped insert | 38 | 19 | thread 5/16-18, depth t 8 mm, cover plate s 2 mm | natural rubber 55 Shore A, steel / stainless cover | max 441 lbf (1962 N), deflection 3.81 mm |
| Ganter GN 352.2 / 452.2 (tapped) | rubber mount, tapped insert | 38 | 25 | thread 5/16-18, depth t 8 mm, cover plate s 2 mm | natural rubber 55 Shore A, steel / stainless cover | max 400 lbf (1779 N), deflection 6.35 mm |
| Ganter GN 352.2 / 452.2 (tapped) | rubber mount, tapped insert | 38 | 25 | thread 3/8-16, depth t 10 mm, cover plate s 2 mm | natural rubber 55 Shore A, steel / stainless cover | max 400 lbf (1779 N), deflection 6.35 mm |
| Ganter GN 352.2 / 452.2 (tapped) | rubber mount, tapped insert | 51 | 19 | thread 3/8-16, depth t 10 mm, cover plate s 2 mm | natural rubber 55 Shore A, steel / stainless cover | max 1045 lbf (4648 N), deflection 3.81 mm |
| Ganter GN 352.2 / 452.2 (tapped) | rubber mount, tapped insert | 51 | 41 | thread 3/8-16, depth t 10 mm, cover plate s 2 mm | natural rubber 55 Shore A, steel / stainless cover | max 670 lbf (2980 N), deflection 10.16 mm |

## Where the files are

- Essentra Components: [Screw-on bumper / rubber feet: base diameter, base height, screw hole diameter, material](https://essentracomponents.com/en-ca/p/screw-on-bumper-rubber-feet-screw-on-feet) — web — Publisher's page; dimensions are facts
- Essentra Components: [Screw-on feet table with inside diameter column](https://www.essentracomponents.com/en-ca/p/screw-on-bumper-rubber-feet-screw-on-feet?page=-5) — web — Publisher's page; dimensions are facts
- Ganter (JW Winco sheet on sic-components.com): [GN 352.1 / 452.1 rubber mounts with threaded stud: d1, h, d2, l, s, spring rate, max load, deflection](https://datasheet.sic-components.com/352_1_452_1.pdf) — web — Publisher's page; dimensions are facts
- Ganter (JW Winco sheet on sic-components.com): [GN 352.2 / 452.2 rubber mounts with tapped insert: d1, h, d2, s, t, spring rate, max load, deflection](https://datasheet.sic-components.com/352_2_452_2.pdf) — web — Publisher's page; dimensions are facts

## Questions

**What is the size of the Essentra SOF-15125 foot?**

19.1 mm (0.750 in) diameter, 11.5 mm (0.453 in) tall, 0.400 in screw hole.

**What is the load of a GN 352.1 rubber foot 25 × 13?**

214 lbf (about 950 N) maximum, 2.54 mm deflection, with a 1/4-20 × 13 mm stud (Shore A 55).

**What is the difference between GN 352 and GN 452?**

Same rubber mount; 352 has a zinc-plated steel cover plate and stud or insert, 452 stainless steel (1.4301).

## Fits with

- [3M Bumpon adhesive bumpers SJ5003, SJ5008, SJ5012, SJ5023 and more: shape, width, height, colours](https://xemstudio.com/objects/3m-bumpon-sj5000-bumpers/)
- [Rubber buffers GN 351 / GN 451 (cylindrical rubber-metal mounts): diameter, height, thread M3 to M16, stud length, male-male and female forms + STEP/STL](https://xemstudio.com/objects/rubber-buffers-gn-351-gn-451/)
- [Leveling feet: base diameter and stud thread (Ganter GN 343.1 / 343.2 Ø25–60, M6–M24; Ganter and McMaster-Carr option ranges)](https://xemstudio.com/objects/leveling-feet-gn-343-and-mcmaster/)
- [Leg caps and risers for Ø40 round legs (ADILS size)](https://xemstudio.com/objects/furniture-leg-caps-40mm/)
- [Extrusion end feet for 20, 30, 40, 45 mm and 1 in, 1.5 in T-slot extrusion](https://xemstudio.com/objects/t-slot-feet/)
- [Threaded standoffs, M2.5 and M3 (hex and round)](https://xemstudio.com/objects/threaded-standoffs-metric/)
- [Nail-on furniture glides (chair glides): base diameter and length under head — Essentra part sizes](https://xemstudio.com/objects/furniture-glides-nail-on/)