Washer Types, Technical Features & Industrial Selection Guide According To GOST Standard
Washers are essential auxiliary fastener components, responsible for load distribution, surface protection and anti-vibration locking of threaded connections. Improper washer selection often causes bolt loosening, metal surface crushing and failure of mechanical assemblies. This article introduces common washer types, technical characteristics and matching principles for various working environments following GOST standards.
Main Types Of Industrial Washers
- Flat Washers: Standard choice for static joints, expand bearing area and avoid crushing thin metal surfaces.
- Spring Washers: Provide continuous elastic preload, compensate minor vibration and thermal deformation.
- Toothed Lock Washers：Equipped with sharp teeth to provide reliable anti-loosening performance under heavy vibration conditions.
Performance Comparison & Selection Reference
| Washer Type | Vibration Resistance | Surface Protection Ability | Typical Application |
| Flat Washer | Low | High | Building construction, static steel frames |
| Spring Washer | Medium | Medium | General machinery, light dynamic load parts |
| Toothed Lock Washer | High | Low | Vibrating equipment, transport assemblies |
Core installation rule: match the washer size strictly according to bolt diameter. Mismatched washers will reduce connection stability and fail to meet GOST specification requirements.