#6 Washer Dimensions & Size
Disclaimer: Washer dimensions and tolerances may vary by standard, manufacturer, material, or finish. Always confirm critical dimensions using the official product datasheet before installation.
| SAE Standard | |||
|---|---|---|---|
| Dimensions | Nominal Size (in) | Actual Size (in) | |
| Min | Max | ||
| Inner Diameter | 5/32 | 0.151 | 0.164 |
| Outer Diameter | 3/8 | 0.370 | 0.390 |
| Thickness | Not specified | 0.036 | 0.065 |
Frequently Asked Questions
What is the difference between USS and SAE washer standards?
USS (United States Standard) washers generally have a larger outer diameter and thicker profile, making them suitable for structural and general-purpose applications. SAE (Society of Automotive Engineers) washers are typically smaller and thinner, designed for compact and precision assemblies such as automotive and machinery components.
What size is a #6 washer?
A #6 washer is sized to fit #6 screws. Under the SAE standard, it typically has a nominal inner diameter of 5/32″ and a nominal outer diameter of 3/8″.
What is the inner diameter of a #6 washer?
The inner diameter is designed to provide clearance for the fastener. A #6 SAE washer typically has a nominal inner diameter of 5/32″.
What is the outer diameter of a #6 washer?
Under the SAE standard, a #6 washer usually has a nominal outer diameter of 3/8″.
How thick is a #6 washer?
Washer thickness varies by manufacturer; however, #6 SAE washers typically range from 0.036 to 0.065 inch in thickness.