Gibraltar Z9101BR Standard Flat Washer 3/4 in Brass

Product Description

The GIBRALTAR Z9101BR is a standard flat washer manufactured from solid brass with a plain finish. Designed for use with 3/4 inch screws, this washer distributes fastener load across a wider surface area to reduce material stress and prevent pull-through. It measures 25/32 inches inside diameter, 1-5/8 inches outside diameter, and 5/32 inches thick. The brass construction provides natural corrosion resistance, making it suitable for applications where steel washers may be prone to rust or galvanic incompatibility. Licensed tradespeople and experienced DIYers alike use this washer in plumbing, electrical, and general mechanical fastening assemblies.

This washer is appropriate for residential and commercial applications where a 3/4 inch screw or bolt fastening point requires load distribution or surface protection. Brass is commonly specified in plumbing and marine-adjacent environments due to its resistance to dezincification and compatibility with copper and bronze hardware. The plain finish means no coating has been applied, leaving the material in its natural state for applications where additional coatings are unnecessary or unwanted.

Key Features

• Solid brass construction with plain finish for natural corrosion resistance
• Fits 3/4 inch screw size with 25/32 inch inside diameter
• 1-5/8 inch outside diameter provides broad load distribution
• 5/32 inch thickness maintains dimensional stability under load
• Inch measurement system for compatibility with standard fastener tooling

Compatibility

Designed as an OEM-style replacement or standard-service flat washer for use with 3/4 inch fasteners in general mechanical, plumbing, and electrical assemblies requiring brass hardware.

Installation Notes

Installation requires no specialized tools beyond standard wrenches or sockets appropriate for the fastener being used. Power down or de-energize any associated electrical system before fastening hardware in electrical panel or junction box applications. In plumbing applications, shut off water supply before disassembling any connections. Follow applicable IPC or NEC guidelines for the specific trade discipline.