Product Specifications
| Model / Specification | Φ3-Φ100 |
| Material | Carbon steel, Stainless steel |
| Thread size d | Φ3 | Φ4 | Φ5 | Φ6 | Φ8 | Φ10 | Φ12 | Φ14 | Φ16 | Φ18 | Φ20 | Φ22 | Φ24 | Φ25 | Φ27 |
|---|
| d | Min.=nominal | 3 | 4 | 5 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 22 | 24 | 25 | 27 |
| Max. | 3.14 | 4.18 | 5.18 | 6.18 | 8.22 | 10.22 | 12.27 | 14.27 | 16.27 | 18.27 | 20.33 | 22.33 | 24.33 | 25.33 | 27.52 |
| dc | Max.=nominal | 6 | 8 | 10 | 12 | 15 | 18 | 20 | 22 | 24 | 28 | 30 | 34 | 37 | 38 | 39 |
| Min. | 5.7 | 7.64 | 9.64 | 11.57 | 14.57 | 17.57 | 19.48 | 21.48 | 23.48 | 27.48 | 29.48 | 33.38 | 36.38 | 37.38 | 38 |
| h | Nominal | 0.8 | 0.8 | 1 | 1.6 | 2 | 2.5 | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 5 |
| Max. | 0.9 | 0.9 | 1.1 | 1.8 | 2.2 | 2.7 | 3.3 | 3.3 | 3.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 5.6 |
| Min. | 0.7 | 0.7 | 0.9 | 1.4 | 1.8 | 2.3 | 2.7 | 2.7 | 2.7 | 3.7 | 3.7 | 3.7 | 3.7 | 3.7 | 4.4 |
| Weight ≈ kg / 1000 pcs (steel) | 0.133 | 0.237 | 0.462 | 1.07 | 1.99 | 3.45 | 4.74 | 5.33 | 5.92 | 11.34 | 12.33 | 16.57 | 19.56 | 20.2 | 24.41 |
| Thread size d | Φ28 | Φ30 | Φ32 | Φ33 | Φ36 | Φ40 | Φ45 | Φ50 | Φ55 | Φ60 | Φ70 | Φ80 | Φ90 | Φ100 |
|---|
| d | Min.=nominal | 28 | 30 | 32 | 33 | 36 | 40 | 45 | 50 | 55 | 60 | 70 | 80 | 90 | 100 |
| Max. | 28.52 | 30.52 | 32.62 | 33.62 | 36.62 | 40.62 | 45.62 | 50.62 | 55.74 | 60.74 | 70.74 | 80.74 | 90.87 | 100.87 |
| dc | Max.=nominal | 40 | 44 | 46 | 47 | 50 | 56 | 60 | 66 | 72 | 78 | 92 | 98 | 110 | 120 |
| Min. | 39 | 43 | 45 | 46 | 49 | 54.8 | 58.8 | 64.8 | 70.8 | 76.8 | 90.6 | 96.6 | 108.6 | 118.6 |
| h | Nominal | 5 | 5 | 5 | 5 | 6 | 6 | 6 | 8 | 8 | 10 | 10 | 12 | 12 | 12 |
| Max. | 5.6 | 5.6 | 5.6 | 5.6 | 6.6 | 6.6 | 6.6 | 9 | 9 | 11 | 11 | 13.2 | 13.2 | 13.2 |
| Min. | 4.4 | 4.4 | 4.4 | 4.4 | 5.4 | 5.4 | 5.4 | 7 | 7 | 9 | 9 | 10.8 | 10.8 | 10.8 |
| Weight ≈ kg / 1000 pcs (steel) | 25.15 | 31.94 | 33.66 | 34.53 | 44.54 | 56.82 | 58.26 | 91.54 | 106.5 | 153.2 | 219.7 | 237 | 295.9 | 325.5 |
Dimensions in mm. The bracketed sizes ((4.5), (5.5), (7)) are non-preferred. Data compiled from GB/T 97.3-2000 for selection reference only; actual supply is subject to drawings and inspection reports.
Product Overview
The plain washer for pins is manufactured to GB/T 97.3-2000. It is a flat ring-shaped washer with a centre hole, placed between the pin, bolt or nut and the joined part. It increases the contact area, distributes the compressive stress and protects the surface of the joined part. It is widely used in machinery, construction, automotive and various fastening applications.
1. Product Features
- Flat ring shape with a centre hole, easy to install.
- Increases the contact area and distributes the compressive stress of the pin, bolt or nut.
- Protects the joined surface from crushing and scratching.
- Complete size range covering common pin diameters.
- Available in carbon steel and stainless steel to suit the service environment.
2. Product Advantages
- Distributes compressive stress and prevents the pin or bolt from crushing the joined surface.
- Protects the joined surface and extends the service life of the connection.
- High degree of standardisation: the GB/T 97.3 dimensional system is complete, which simplifies export matching and second sourcing.
- Material and surface finish can be customised to balance strength, corrosion resistance and cost.
3. Application Scope
- Pin connections in machinery, steel structures and building components.
- Assembly in automotive, motorcycle and construction machinery.
- Fixing of electrical equipment, instruments and meters.
- Stainless steel versions suit damp or mildly corrosive environments such as outdoor, chemical and food equipment.
