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 | 1-1/8 | 1.190 | 3.690 | 0.375 | 5 | Add to Quote | |
| View | Spring Steel - Hard | Black Oxide | 1-1/8 | 1.191 | 2.440 | 0.03 | 0 | Add to Quote | |
| View | Spring Steel - Hard | Plain | 1-1/8 | 1.192 | 2.000 | 0.125 | 44538 | Add to Quote | |
| View | Spring Steel - Hard | Plain | 1-1/8 | 1.193 | 1.750 | 0.18 | 0 | Add to Quote | |
| View | Spring Steel - Hard | Zinc & Clear | 1-1/8 | 1.193 | 1.750 | 0.18 | 970 | Add to Quote | |
| View | Spring Steel - Hard | Phosphate & Oil | 1-1/8 | 1.193 | 1.765 | 0.118 | 0 | Add to Quote | |
| View | Alloy Steel - Hard | Plain | 1-1/8 | 1.194 | 2.995 | 0.187 | 13 | Add to Quote | |
| View | Spring Steel - Hard | Plain | M30 | 1-1/8 | 1.196 | 2.058 | 0.05 | 300 | Add to Quote |
| View | Spring Steel - Hard | Plain | M30 | 1-1/8 | 1.196 | 1.281 | 0.02 | 6700 | Add to Quote |
| View | Spring Steel - Hard | Zinc & Yellow | M30 | 1-1/8 | 1.198 | 2.000 | 0.104 | 5030 | Add to Quote |
| View | Spring Steel - Hard | Zinc & Clear | M30 | 1-1/8 | 1.198 | 2.105 | 0.119 | 0 | Add to Quote |
| View | Spring Steel - Hard | Plain | M30 | 1-1/8 | 1.200 | 1.615 | 0.048 | 9403 | 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.
