Grade 8 Extra Heavy (Thick) USS Flat Washers

Grade 8 Extra Heavy USS Flat Washers

Heat Treated Alloy Steel - Yellow Zinc Plated

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EXTRA THICK Grade 8 USS Flat Washers are manufactured from High Strength Alloy Steel
It is recommended that an EXTRA THICK Grade 8 Flat Washer be used with Grade 8 Nuts and Bolts
Grade 8 Washers do not crush and deform when torque is applied in tightening.

Premium Thick Washers for Heavy-Duty Applications

When your project calls for extra strength and reliability, our heavy duty flat washers are the perfect solution. These Grade 8 extra heavy thick washers are manufactured from high-quality steel and built to withstand intense loads and extreme conditions. Designed with a thicker material profile than standard washers, they help distribute force evenly to prevent loosening and surface damage. The USS diameter sizing ensures compatibility with a wide range of bolts and fasteners. Ideal for structural, industrial, and automotive applications, many options also feature a durable black oxide finish for added protection and an attractive finish.

FAQ

Extra heavy flat washers are significantly thicker than standard models, typically ranging between 0.188 to 0.313 inches depending on the diameter and item specification. This added material makes them ideal for high-stress environments where extra load distribution is necessary to reduce damage and maintain fastener integrity.

Yes, our thick steel washers are available with a black oxide finish, which adds a layer of protection against rust and corrosion. While not fully rust-proof, this finish provides excellent durability for many environments. For added protection, consider using Nutty nuts products in addition to anti-corrosion coatings or treatments.

Absolutely. These heavy duty flat washers are a great choice for outdoor projects, especially when paired with corrosion-resistant coatings or black oxide treated versions. Their thick material design prevents warping and damage in tough environments, making them a reliable addition to outdoor construction or equipment repair.

The primary difference lies in the inner diameter and outer diameter. USS washers have a larger inner hole, making them ideal for general-purpose use, especially in heavy-duty applications. SAE washers, on the other hand, feature a tighter fit with smaller diameter tolerances, typically used in automotive and precision settings.

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