Product Description
Metric A2 Stainless Steel Thick Belleville Conical Spring Washers – DIN 6796
A2 stainless steel conical spring washers to DIN 6796, also known as Belleville washers. Their thick, dished profile provides spring action when compressed, helping maintain clamping force as a bolted joint settles.
Suitable for machinery, equipment assembly and general engineering applications requiring a corrosion-resistant conical washer. Available in selected metric sizes from M3 to M20.
Technical Specifications
| Material | A2 stainless steel |
|---|---|
| Standard | DIN 6796 |
| Washer Type | Thick conical spring washer |
| Alternative Name | Belleville washer |
| Size System | Metric |
| Available Sizes | M3, M4, M5, M6, M8, M10, M12, M16 and M20 |
Dimensions
| Nominal Bolt Size | Internal Diameter | External Diameter | Material Thickness | Uncompressed Overall Height |
|---|---|---|---|---|
| M3 | 3.2mm | 7mm | 0.6mm | 0.72–0.85mm |
| M4 | 4.3mm | 9mm | 1mm | 1.12–1.30mm |
| M5 | 5.3mm | 11mm | 1.2mm | 1.35–1.55mm |
| M6 | 6.4mm | 14mm | 1.5mm | 1.70–2.00mm |
| M8 | 8.4mm | 18mm | 2mm | 2.24–2.60mm |
| M10 | 10.5mm | 23mm | 2.5mm | 2.60–3.20mm |
| M12 | 13mm | 29mm | 3mm | 3.43–3.95mm |
| M16 | 17mm | 39mm | 4mm | 4.58–5.25mm |
| M20 | 21mm | 45mm | 5mm | 5.60–6.40mm |
The nominal size refers to the bolt the washer fits, rather than the exact internal diameter. For example, an M6 washer has a 6.4mm internal diameter to provide clearance around an M6 bolt.
Material thickness is the thickness of the metal itself. Uncompressed overall height includes the washer's conical profile. Diameters and material thicknesses are nominal dimensions subject to manufacturing tolerances.
Fitting Information
Select the washer size to suit your bolt or screw, and check that the bearing surface accommodates its external diameter. Fit beneath the bolt head or nut in accordance with the assembly requirements.
The washer compresses as the joint is tightened. Required preload and working deflection depend on the application; dimensions alone do not specify its load capacity.
Choose your required washer size and pack quantity from the options above.
