3/8" Stainless Steel Fender Washer – Heavy-Duty Corrosion-Resistant Washer

The 3/8" Stainless Steel Fender Washer is a premium-grade, wide-diameter washer designed to provide extra surface area for load distribution and secure fastening. Made from 304 stainless steel, this washer offers superior strength and corrosion resistance—perfect for pressure washing, softwash systems, marine, and industrial applications.

The larger outer diameter of a fender washer helps prevent pull-through and damage to soft materials such as plastic, fiberglass, or aluminum. It’s ideal for use in assembly, mounting brackets, and hardware connections exposed to moisture, chemicals, or outdoor environments.

Specifications & Details:

• Product Type: Fender Washer

• Material: 304 Stainless Steel

• Inner Diameter (ID): 3/8"

• Outer Diameter (OD): 1-1/4" (standard fender washer size)

• Thickness: Approx. 0.06"

• Finish: Polished stainless steel

• Applications: Pressure washer and softwash assemblies, marine hardware, automotive, construction, and outdoor equipment

Features:

• Made from corrosion-resistant 304 stainless steel

• Extra-wide OD provides greater load distribution

• Prevents pull-through in softer materials

• Ideal for wet, chemical, or outdoor environments

• Perfect for professional softwash and pressure washing rigs