We offer a large catalog of flat washers that are available in materials such as stainless steel, brass, nylon, copper, and bronze.
Hardened Washers
Hardened washers are precision-engineered flat washers, manufactured from carefully selected materials and heat-treated to enhance hardness and durability. The hardness of these washers makes them resistant to wear and able to handle heavy loads. They are ideal for use with high-strength bolts to ensure that assemblies maintain their integrity under very demanding conditions. Willie Washer offers a vast range of hardened parts, meeting industry standards such as ASTM F436 or the metric standard HV300, along with various OEM specifications. We also offer case-hardened washers, commonly available with a surface hardness of 15N 89.
| Material | Finish | Bolt Size (Metric) | Bolt Size (Standard) | Inside Diameter | Outside Diameter | Thickness | Quantity in Stock | Request a Quote | |
|---|---|---|---|---|---|---|---|---|---|
| View | Spring Steel - Hard | Plain | 0.000 | 2.720 | 0.02 | 1735 | Add to Quote | ||
| View | Spring Steel - Hard | Zinc & Clear | M5 | 12 | 0.220 | 0.421 | 0.048 | 0 | Add to Quote |
| View | Spring Steel - Hard | Plain | 12 | 0.239 | 1.562 | 0.09 | 7100 | Add to Quote | |
| View | Spring Steel - Hard | Plain | M6 | 12 | 0.250 | 2.000 | 0.062 | 2880 | Add to Quote |
| View | Spring Steel - Hard | Plain | M6 | 12 | 0.250 | 3.000 | 0.125 | 10 | Add to Quote |
| View | Spring Steel - Hard | Zinc & Yellow | M6 | 1/4 | 0.256 | 0.468 | 0.062 | 30 | Add to Quote |
| View | Spring Steel - Hard | Plain | M6 | 1/4 | 0.260 | 2.000 | 0.057 | 0 | Add to Quote |
| View | Spring Steel - Hard | Zinc & Yellow | M6 | 1/4 | 0.260 | 2.000 | 0.057 | 0 | Add to Quote |
| View | Spring Steel - Hard | Zinc & Clear | M6 | 1/4 | 0.260 | 2.000 | 0.057 | 11775 | Add to Quote |
| View | Spring Steel - Hard | Plain | M6 | 1/4 | 0.265 | 0.500 | 0.062 | 22800 | Add to Quote |
| View | Spring Steel - Hard | Zinc & Clear | M6 | 1/4 | 0.265 | 0.734 | 0.059 | 730 | Add to Quote |
| View | Spring Steel - Hard | Zinc & Clear | 1/4 | 0.266 | 0.500 | 0.061 | 1290 | Add to Quote |
Industries That Use Hardened Washers
Hardened washers are often used in the construction industries for projects that require high-strength bolts, like bridges or other steel structures. Hardened washers are also used in:
- Heavy equipment and machinery – for parts that are subjected to heavy loads or vibrations
- Automotive – for components like suspension systems or engine assemblies
- Industrial – to ensure precise assembly and load distribution
Request a Quote for Hardened Washers
Willie Washer is your trusted source for the hardened washers you require. Search our catalog, call us or fill out our contact form to request a quote or receive assistance with finding a hardened washer that meets your exact specifications.