Specifications
- No additional counter-holding measures or second person required for bolted joint assembly
- Immediate, effective locking even at low preload forces
- Ideal for installation in confined spaces
- Tightening and loosening possible with access from only one side
- Friction based positive locking
- Effectively prevents turning on the passive side
- Prevention of accidents at work by eliminating reaction arms
- Protection against self-rotation when combined with the GripWasher NS-Disc
Technical data
- Backup-washer for use with the GripWasher NS-Disc
- Material: 1.1191 (C45E) with black zinc flake coating (flZnnc)
- Hardness: 485±25 HV0,3
- Corrosion resistance: min. 1,000 h in NSS-test according to ISO 9227
- Suitable for high-strength bolts and nuts up to strength class 12.9 / 12
- Available dimensions: M16 – M48 (5/8“ – 1 3⁄4“)
- Other nominal sizes, materials and coatings available on request
Models (standard version)
| Model | Nominal diameter |
| GWBS_16 | M16 |
| GWBS_20 | M20 |
| GWBS_24 | M24 |
| GWBS_30 | M30 |
| GWBS_36 | M36 |
| GWBS_42 | M42 |
| GWBS_45 | M45 |
| GWBS_48 | M48 |
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Production / Order
We produce standards as well as customized solutions based on your requirements!
Tell us your desired nominal diameter (M16 – 48), materials, and coatings – we‘ll take care of it!
If you are unsure about the information or how to fill it out, just call us:
+49 (0) 2843 – 9169922
We are happy to advise and support you!
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