Gibraltar Z9200BR Extra Thick Flat Washer Brass 1/4 in

Product Description

The GIBRALTAR Z9200BR is an extra thick flat washer machined from solid brass with a plain (uncoated) finish. Sized for 1/4-inch screws, it features a 9/32-inch inside diameter, a 5/8-inch outside diameter, and a 3/16-inch thickness that provides greater load distribution and resistance to pull-through compared to standard-thickness washers. The brass construction resists corrosion in wet, marine, and dissimilar-metal environments where steel washers would be unsuitable. Plumbers, electricians, marine technicians, and general contractors install this washer wherever a larger bearing surface and added thickness are required under a fastener head or nut.

This washer is suited for residential and light commercial applications where brass fastener hardware is specified. Common uses include plumbing fixture installations, electrical panel work requiring non-ferrous hardware, marine and coastal construction assemblies, and general mechanical fastening where corrosion resistance and dimensional thickness are priorities. The plain finish allows for soldering or further finishing if the application demands it.

Key Features

• Extra thick at 3/16 inches for increased load distribution and pull-through resistance
• Brass construction provides inherent corrosion resistance without surface coatings
• Plain finish compatible with soldering and field finishing applications
• 9/32-inch ID fits standard 1/4-inch screw shanks with minimal clearance
• 5/8-inch OD delivers a broad bearing surface relative to fastener size
• Inch measurement system for direct compatibility with standard SAE fastener hardware

Compatibility

Designed for use with 1/4-inch screws and bolts in standard inch-measurement fastener assemblies where brass hardware and extra washer thickness are required.

Installation Notes

This washer is installed by plumbers, electricians, and general-trades technicians using standard hand tools. Ensure the mating fastener is also brass or an appropriate non-ferrous alloy when corrosion resistance is the primary concern, as mixing metals can introduce galvanic corrosion in wet environments. Torque the fastener to the assembly specification for the parent material being joined. Verify applicable plumbing, electrical, or mechanical codes for fastener material requirements before installation.