Gibraltar Z9205BR Extra Thick Flat Washer Brass 5/8 in

Product Description

The GIBRALTAR Z9205BR is an extra thick flat washer designed for 5/8-inch screw applications requiring added load distribution and surface protection. Manufactured from solid brass with a plain finish, this washer measures 21/32 inches inside diameter, 1-3/8 inches outside diameter, and 3/16 inches thick. The added thickness compared to standard flat washers makes it well suited for applications where fastener pull-through resistance or increased bearing surface area is required. Plumbers, electricians, HVAC technicians, and general mechanical contractors use washers of this type when assembling equipment, securing pipe hangers, or mounting components to structural surfaces.

This washer is appropriate for residential and commercial trade applications where a 5/8-inch fastener is used and a thicker-than-standard seating surface is needed. The brass construction resists corrosion in environments with moisture exposure, making it a practical choice for plumbing assemblies, outdoor mechanical installations, and marine-adjacent applications where steel hardware would be prone to rust.

Key Features

• Extra thick at 3/16 inches for greater load distribution than standard flat washers
• Solid brass construction provides natural corrosion resistance without a coating
• Plain finish — no plating or treatment that could flake or delaminate over time
• Inside diameter of 21/32 inches fits 5/8-inch screw shanks with standard clearance
• Outside diameter of 1-3/8 inches provides a broad bearing surface
• Inch measurement system; UNSPSC Code 31161807

Compatibility

Designed for use with 5/8-inch screws and bolts in inch-measurement fastener assemblies across plumbing, HVAC, electrical, and general mechanical trade applications.

Installation Notes

Install using standard hand tools appropriate for the fastener type being used. Ensure mating surfaces are clean and free of debris before seating the washer to maintain even load distribution. When used in plumbing or wet environments, brass is compatible with copper and many non-ferrous fittings but verify galvanic compatibility before pairing with dissimilar metals. No special torque specifications are required beyond what the fastener and base material dictate.