Dottie FWBR516 Washer, 5/16" Brass Flat Washer

Deliver reliable, long-lasting fastening in demanding installations with the Dottie 5/16 in Brass Flat Washer (FWBR516). Engineered from solid brass, this washer resists tarnishing and corrosion while increasing the surface area of fasteners to prevent pull-through and damage to finished surfaces. At 5/16 in fastener size with a 0.7 in outside diameter and packaged quantity of 50, it’s sized for common bolts and screws used across plumbing, HVAC, electrical and low-voltage projects.

For security and surveillance installers, this brass flat washer helps maintain secure camera mounts and junction box fastenings by reducing loosening from vibration—critical for uninterrupted monitoring and networking equipment. It also functions as a reliable spacer for proper alignment in rack and conduit assemblies. Certified to ASME B18.21.1 and RoHS-compliant, the FWBR516 meets professional standards while supporting environmentally conscious specifications.

Choose Dottie brass flat washers for dependable load distribution and corrosion performance. Add a pack of FWBR516 washers to your next materials order to streamline installation and improve long-term reliability on every job.

• Corrosion-resistant solid brass protects fittings and extends service life
• Evenly distributes fastening force to prevent material damage and pull-through
• Reduces loosening from vibration for more reliable security and surveillance mounts
• Serves as a precision spacer for proper alignment in plumbing, HVAC and electrical installs
• ASME B18.21.1 compliant and RoHS-friendly for professional applications