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. For applications that do not require specialized heat-treatment, we also maintain an extensive inventory of standard USS and SAE flat washers in a variety of materials available for immediate shipment.
| Material | Finish | Bolt Size (Metric) | Bolt Size (Standard) | Inside Diameter | Outside Diameter | Thickness | Quantity in Stock | Request a Quote | |
|---|---|---|---|---|---|---|---|---|---|
| View | Spring Steel - Hard | Plain | M12 | 1/2 | 0.510 | 0.671 | 0.02 | 12501 | Add to Quote |
| View | Spring Steel - Hard | Plain | M12 | 1/2 | 0.510 | 0.650 | 0.018 | 0 | Add to Quote |
| View | Spring Steel - Hard | Plain | M12 | 1/2 | 0.510 | 0.650 | 0.026 | 0 | Add to Quote |
| View | Spring Steel - Hard | Zinc & Clear | M12 | 1/2 | 0.510 | 0.750 | 0.016 | 51801 | Add to Quote |
| View | Spring Steel - Hard | Plain | M12 | 1/2 | 0.510 | 0.750 | 0.033 | 115530 | Add to Quote |
| View | Low Carbon Steel - Case Hard | Plain | M12 | 1/2 | 0.510 | 0.750 | 0.062 | 9401 | Add to Quote |
| View | Low Carbon Steel - Case Hard | Plain | M12 | 1/2 | 0.510 | 0.830 | 0.24 | 38 | Add to Quote |
| View | Spring Steel - Hard | Plain | M12 | 1/2 | 0.510 | 0.860 | 0.03 | 82202 | Add to Quote |
| View | Spring Steel - Hard | Zinc & Yellow | M12 | 1/2 | 0.510 | 0.860 | 0.125 | 5340 | Add to Quote |
| View | Spring Steel - Hard | Plain | M12 | 1/2 | 0.510 | 0.875 | 0.05 | 3800 | Add to Quote |
| View | Spring Steel - Hard | Plain | M12 | 1/2 | 0.510 | 0.921 | 0.062 | 88315 | Add to Quote |
| View | Spring Steel - Hard | Plain | M12 | 1/2 | 0.510 | 1.000 | 0.025 | 0 | 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.