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 | 1/4 | 0.281 | 1.500 | 0.125 | 7500 | Add to Quote | |
| View | Alloy Steel - Hard | Special Finish | 1/4 | 0.281 | 2.000 | 0.089 | 770 | Add to Quote | |
| View | Alloy Steel - Hard | Zinc & Clear | 1/4 | 0.281 | 2.000 | 0.089 | 730 | Add to Quote | |
| View | Spring Steel - Hard | Plain | 1/4 | 0.281 | 2.500 | 0.062 | 3801 | Add to Quote | |
| View | Spring Steel - Hard | Plain | 1/4 | 0.281 | 3.000 | 0.125 | 15 | Add to Quote | |
| View | Spring Steel - Hard | Zinc & Clear | M7 | 1/4 | 0.287 | 1.765 | 0.098 | 2250 | Add to Quote |
| View | Spring Steel - Hard | Zinc & Clear | M7 | 1/4 | 0.287 | 1.765 | 0.099 | 1100 | Add to Quote |
| View | Spring Steel - Hard | Zinc & Yellow | M7 | 1/4 | 0.290 | 2.250 | 0.074 | 2400 | Add to Quote |
| View | Spring Steel - Hard | Zinc & Clear | M7 | 1/4 | 0.290 | 2.000 | 0.062 | 3400 | Add to Quote |
| View | Spring Steel - Hard | Plain | M7 | 1/4 | 0.295 | 0.625 | 0.093 | 31 | Add to Quote |
| View | Spring Steel - Hard | Zinc & Clear | M7 | 1/4 | 0.296 | 0.625 | 0.093 | 510 | Add to Quote |
| View | Alloy Steel - Hard | Zinc & Yellow | 5/16 | 0.315 | 2.500 | 0.125 | 615 | 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.