External hexagon at the bottom

GN 21-S/SK

Stainless Steel-Levelling feet, with Turned Base Plate, without Mounting Holes

External hexagon at the bottom

External hexagon at the bottom External hexagon at the bottom
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External hexagon at the bottom
GN 21-S/SK
External hexagon at the bottom
Wrench flat at the bottom
GN 21-T/TK
Wrench flat at the bottom
Hexagon socket at the top
GN 21-U/UK
Hexagon socket at the top
External hexagon at the top
GN 21-V/VK
External hexagon at the top
Hygienic version
GN 21-W
Hygienic version
External hexagon
GN 21-X
External hexagon

GN 21-S/SK

Reset
Description
d1
d2
l1
h1
h2
h3
AF 1
Static load in kN
GN 21-80-M8-40-D0-S
80
M 8
40
8.5
-
19.5
17
6
303
GN 21-80-M8-40-D1-S
80
M 8
40
8.5
2
19.5
17
6
283
GN 21-80-M8-50-D0-S
80
M 8
50
8.5
-
19.5
17
6
306
GN 21-80-M8-50-D1-S
80
M 8
50
8.5
2
19.5
17
6
331
GN 21-80-M8-63-D0-S
80
M 8
63
8.5
-
19.5
17
6
310
GN 21-80-M8-63-D1-S
80
M 8
63
8.5
2
19.5
17
6
150
GN 21-80-M10-50-D0-S
80
M 10
50
8.5
-
19.5
17
11
315
GN 21-80-M10-50-D1-S
80
M 10
50
8.5
2
19.5
17
11
340
GN 21-80-M10-60-D0-S
80
M 10
60
8.5
-
19.5
17
11
320
GN 21-80-M10-60-D1-S
80
M 10
60
8.5
2
19.5
17
11
345
GN 21-80-M10-80-D0-S
80
M 10
80
8.5
-
19.5
17
11
329
GN 21-80-M10-80-D1-S
80
M 10
80
8.5
2
19.5
17
11
354
GN 21-80-M10-100-D0-S
80
M 10
100
8.5
-
19.5
17
11
340
GN 21-80-M10-100-D1-S
80
M 10
100
8.5
2
19.5
17
11
365
GN 21-80-M12-60-D0-S
80
M 12
60
8.5
-
19.5
17
16
340
GN 21-80-M12-60-D1-S
80
M 12
60
8.5
2
19.5
17
16
360
GN 21-80-M12-80-D0-S
80
M 12
80
8.5
-
19.5
17
16
348
GN 21-80-M12-80-D1-S
80
M 12
80
8.5
2
19.5
17
16
373
GN 21-80-M12-100-D0-S
80
M 12
100
8.5
-
19.5
17
16
362
GN 21-80-M12-100-D1-S
80
M 12
100
8.5
2
19.5
17
16
387
GN 21-80-M12-125-D0-S
80
M 12
125
8.5
-
19.5
17
16
379
GN 21-80-M12-125-D1-S
80
M 12
125
8.5
2
19.5
17
16
404
GN 21-100-M8-40-D0-S
100
M 8
40
9
-
20.5
17
6
492
GN 21-100-M8-40-D1-S
100
M 8
40
9
3
20.5
17
6
500
GN 21-100-M8-50-D0-S
100
M 8
50
9
-
20.5
17
6
495
GN 21-100-M8-50-D1-S
100
M 8
50
9
3
20.5
17
6
548
GN 21-100-M8-63-D0-S
100
M 8
63
9
-
20.5
17
6
499
GN 21-100-M8-63-D1-S
100
M 8
63
9
3
20.5
17
6
552
GN 21-100-M10-50-D0-S
100
M 10
50
9
-
20.5
17
11
504
GN 21-100-M10-50-D1-S
100
M 10
50
9
3
20.5
17
11
558
GN 21-100-M10-60-D0-S
100
M 10
60
9
-
20.5
17
11
509
GN 21-100-M10-60-D1-S
100
M 10
60
9
3
20.5
17
11
562
GN 21-100-M10-80-D0-S
100
M 10
80
9
-
20.5
17
11
518
GN 21-100-M10-80-D1-S
100
M 10
80
9
3
20.5
17
11
571
GN 21-100-M10-100-D0-S
100
M 10
100
9
-
20.5
17
11
529
GN 21-100-M10-100-D1-S
100
M 10
100
9
3
20.5
17
11
583
GN 21-100-M12-60-D0-S
100
M 12
60
9
-
20.5
17
16
523
GN 21-100-M12-60-D1-S
100
M 12
60
9
3
20.5
17
16
576
GN 21-100-M12-80-D0-S
100
M 12
80
9
-
20.5
17
16
537
GN 21-100-M12-80-D1-S
100
M 12
80
9
3
20.5
17
16
590
GN 21-100-M12-100-D0-S
100
M 12
100
9
-
20.5
17
16
551
GN 21-100-M12-100-D1-S
100
M 12
100
9
3
20.5
17
16
605
GN 21-100-M12-125-D0-S
100
M 12
125
9
-
20.5
17
16
568
GN 21-100-M12-125-D1-S
100
M 12
125
9
3
20.5
17
16
622
GN 21-80-M8-40-D0-SK
80
M 8
40
8.5
-
19.5
17
6
307
GN 21-80-M8-40-D1-SK
80
M 8
40
8.5
2
19.5
17
6
350
GN 21-80-M8-50-D0-SK
80
M 8
50
8.5
-
19.5
17
6
310
GN 21-80-M8-50-D1-SK
80
M 8
50
8.5
2
19.5
17
6
300
GN 21-80-M8-63-D0-SK
80
M 8
63
8.5
-
19.5
17
6
300
GN 21-80-M8-63-D1-SK
80
M 8
63
8.5
2
19.5
17
6
325
GN 21-80-M10-50-D0-SK
80
M 10
50
8.5
-
19.5
17
11
324
GN 21-80-M10-50-D1-SK
80
M 10
50
8.5
2
19.5
17
11
300
GN 21-80-M10-60-D0-SK
80
M 10
60
8.5
-
19.5
17
11
329
GN 21-80-M10-60-D1-SK
80
M 10
60
8.5
2
19.5
17
11
354
GN 21-80-M10-80-D0-SK
80
M 10
80
8.5
-
19.5
17
11
338
GN 21-80-M10-80-D1-SK
80
M 10
80
8.5
2
19.5
17
11
363
GN 21-80-M10-100-D0-SK
80
M 10
100
8.5
-
19.5
17
11
349
GN 21-80-M10-100-D1-SK
80
M 10
100
8.5
2
19.5
17
11
400
GN 21-80-M12-60-D0-SK
80
M 12
60
8.5
-
19.5
17
16
346
GN 21-80-M12-60-D1-SK
80
M 12
60
8.5
2
19.5
17
16
500
GN 21-80-M12-80-D0-SK
80
M 12
80
8.5
-
19.5
17
16
360
GN 21-80-M12-80-D1-SK
80
M 12
80
8.5
2
19.5
17
16
370
GN 21-80-M12-100-D0-SK
80
M 12
100
8.5
-
19.5
17
16
380
GN 21-80-M12-100-D1-SK
80
M 12
100
8.5
2
19.5
17
16
389
GN 21-80-M12-125-D0-SK
80
M 12
125
8.5
-
19.5
17
16
391
GN 21-80-M12-125-D1-SK
80
M 12
125
8.5
2
19.5
17
16
416
GN 21-100-M8-40-D0-SK
100
M 8
40
9
-
20.5
17
6
496
GN 21-100-M8-40-D1-SK
100
M 8
40
9
3
20.5
17
6
549
GN 21-100-M8-50-D0-SK
100
M 8
50
9
-
20.5
17
6
499
GN 21-100-M8-50-D1-SK
100
M 8
50
9
3
20.5
17
6
552
GN 21-100-M8-63-D0-SK
100
M 8
63
9
-
20.5
17
6
500
GN 21-100-M8-63-D1-SK
100
M 8
63
9
3
20.5
17
6
553
GN 21-100-M10-50-D0-SK
100
M 10
50
9
-
20.5
17
11
513
GN 21-100-M10-50-D1-SK
100
M 10
50
9
3
20.5
17
11
770
GN 21-100-M10-60-D0-SK
100
M 10
60
9
-
20.5
17
11
518
GN 21-100-M10-60-D1-SK
100
M 10
60
9
3
20.5
17
11
571
GN 21-100-M10-80-D0-SK
100
M 10
80
9
-
20.5
17
11
527
GN 21-100-M10-80-D1-SK
100
M 10
80
9
3
20.5
17
11
610
GN 21-100-M10-100-D0-SK
100
M 10
100
9
-
20.5
17
11
538
GN 21-100-M10-100-D1-SK
100
M 10
100
9
3
20.5
17
11
580
GN 21-100-M12-60-D0-SK
100
M 12
60
9
-
20.5
17
16
535
GN 21-100-M12-60-D1-SK
100
M 12
60
9
3
20.5
17
16
588
GN 21-100-M12-80-D0-SK
100
M 12
80
9
-
20.5
17
16
500
GN 21-100-M12-80-D1-SK
100
M 12
80
9
3
20.5
17
16
580
GN 21-100-M12-100-D0-SK
100
M 12
100
9
-
20.5
17
16
563
GN 21-100-M12-100-D1-SK
100
M 12
100
9
3
20.5
17
16
616
GN 21-100-M12-125-D0-SK
100
M 12
125
9
-
20.5
17
16
580
GN 21-100-M12-125-D1-SK
100
M 12
125
9
3
20.5
17
16
700

Types (Base plate)

  • Type D0: fine turned, without rubber underlay
  • Type D1: fine turned, with rubber underlay, inlaid, black

Versions of threaded stem

  • Version S: without nut, external hexagon at the bottom
  • Version SK: with nut, external hexagon at the bottom
  • Version T: without nut, wrench flat at the bottom
  • Version TK: with nut, wrench flat at the bottom
  • Version U: without nut, hexagon socket at the top, wrench flat at the bottom
  • Version UK: with nut, hexagon socket at the top, wrench flat at the bottom
  • Version V: without nut, external hexagon at the top, wrench flat at the bottom
  • Version VK: with nut, external hexagon at the top, wrench flat at the bottom
  • Version W: with adjustable sleeve, covered thread, wrench flat at the bottom
  • Version X: with female thread, external hexagon

 Base plate

Stainless Steel AISI 304

 Threaded stem

Stainless Steel AISI 303

 Hexagon nut ISO 4032

Stainless Steel AISI 304

 Rubber underlay, inlaid

NBR (Perbunan®), 70 Shore A

Stainless Steel-Levelling feet GN 21 will be delivered mounted and are not removable.

d1d2Static load in kN----
--Versions of threaded stem----
--S / SKT / TK and U / UKV / VKWX
80M 86---17
80M 1011---17
80M 1216---17
80M 16-17212517
80M 20-28353528
80M 24-465252-
100M 86---17
100M 1011---17
100M 1216---17
100M 16-17212517
100M 20-28353528
100M 24-465252-
120M 20-28--28
120M 24-46---
120M 30-43---

 At a spindle thread size M 10 and higher, the static load of the Stainless Steel-Levelling feet GN 21 is limited owing to the permissible contact pressure of the adjustment spindle acting on the base plate (at a spindle strength ≥ 500 N/mm2). The values given in the table (valid for type D0 without rubber underlay) assume a clean pressure load perpendicular to the base plate. Bending and buckling stress which often occurs in practice results in a lower load-bearing capacity of the adjustment spindle and may have to be taken into account.

The details given on strength are non-binding guide values without any liability. In general, they do not constitute a warranty or quality.

The user must determine from case to case if a product is suitable for the intended purpose or use. Environmental factors may influence the stated values.

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