Flat Washer SS316 5/16 x 5/8 x 18G

The Waterco Flat Washer SS316 5/16 x 5/8 x 18G is a genuine stainless steel flat washer manufactured from premium 316 marine-grade stainless steel for maximum corrosion resistance in harsh pool and spa environments. With precise dimensions of 5/16" inner diameter, 5/8" outer diameter, and 18-gauge thickness, it distributes load evenly across fastened surfaces, reducing wear and preventing damage to components. Designed for long service life and secure fastening, this washer is suitable for both residential and commercial Waterco equipment applications, ensuring reliability and durability in every installation.