Product Description
USA Form Imperial A2 Stainless Steel Thick Flat Washers
USA form imperial flat washers manufactured from A2 stainless steel and listed to ASME B18.21.1. These plain washers provide a bearing surface beneath a nut or bolt head to help distribute the clamping load.
Available Sizes
| Nominal Size | Outside Diameter | Thickness |
|---|---|---|
| No.2 | 0.24 inch | 0.02 inch |
| No.3 | 0.24 inch | 0.02 inch |
| No.4 | 0.30 inch | 0.02 inch |
| No.5 | 0.43 inch | 0.03 inch |
| No.6 | 0.36 inch | 0.02 inch |
| No.8 | 0.37 inch | 0.03 inch |
| No.10 | 0.43 inch | 0.05 inch |
| 1/4 inch | 0.61 inch | 0.04 inch |
| 5/16 inch | 0.75 inch | 0.04 inch |
| 3/8 inch | 0.86 inch | 0.04 inch |
| 7/16 inch | 1.12 inch | 0.05 inch |
| 1/2 inch | 1.24 inch | 0.05 inch |
Nominal size refers to the intended fastener size, rather than the exact washer bore diameter. Dimensions above are approximate.
Key Features
- A2 stainless steel construction
- USA form imperial sizes
- ASME B18.21.1 specification
- Plain flat washer design
- Helps distribute load beneath nuts and bolt heads
- Sizes from No.2 to 1/2 inch
Select the nominal size to suit the fastener and check the outside diameter and thickness against the available space in the assembly.
Related Products
Specifications are intended as a guide. Confirm the required bore diameter, outside diameter and thickness before ordering where dimensions are critical.
