Material standard
Up to inner diameter 56 mm: 11SMnPb30+C
From inner diameter 58 mm: C35
(Automatic steel untreated)
Also available in stainless steel 1.4305 / AISI 420
As well as acid-proof AISI 316
| Inner diam. d1 Tolerance H8 |
Out diam. d2 | Width. b | Stop screw DIN913 |
| 5 | 10 | 6 | M3 |
| 6 | 12 | 8 | M4 |
| 8 | 16 | 8 | M4 |
| 10 | 20 | 10 | M5 |
| 12 | 22 | 12 | M6 |
| 14 | 25 | 12 | M6 |
| 15 | 25 | 12 | M6 |
| 16 | 28 | 12 | M6 |
| 18 | 32 | 14 | M6 |
| 20 | 32 | 14 | M6 |
| 22 | 36 | 14 | M6 |
| 25 | 40 | 16 | M8 |
| 26 | 40 | 16 | M8 |
| 28 | 45 | 16 | M8 |
| 30 | 45 | 16 | M8 |
| 35 | 56 | 16 | M8 |
| 40 | 63 | 18 | M10 |
| 45 | 70 | 18 | M10 |
| 50 | 80 | 18 | M10 |
| 55 | 80 | 18 | M10 |
| 56 | 80 | 18 | M10 |
| 60 | 90 | 20 | M10 |
| 65 | 100 | 20 | M10 |
| 70 | 100 | 20 | M10 |
| 80 | 110 | 22 | M12 |
| 90 | 125 | 22 | M12 |
| 100 | 140 | 25 | M12 |
| 110 | 160 | 25 | M12 |
| 120 | 160 | 25 | M12 |
| 130 | 180 | 28 | M16 |
| 140 | 200 | 28 | M16 |
| 150 | 200 | 28 | M16 |
| 160 | 220 | 32 | M20 |
| 170 | 250 | 32 | M20 |
| 180 | 250 | 32 | M20 |
| 200 | 280 | 32 | M20 |
Order example
Untreated:
Stainless:
Acid-proof:
Galvanized:
SR 20 DIN705
SR 20 DIN705 RF
SR 20 DIN705 A4
SR 20 DIN705 FZB