Gibraltar Z9674G Extra Thick Flat Washer Galvanized Steel

Product Description

The GIBRALTAR Z9674G is an extra thick flat washer designed for 1-inch screw applications in structural, mechanical, and trade installations. Constructed from steel with a galvanized finish for corrosion resistance, this washer features a 1-1/16-inch inside diameter, a 3-1/4-inch outside diameter, and a 1/4-inch thickness. The increased thickness compared to standard flat washers provides greater load distribution and reduces the risk of pull-through on softer substrates. This washer is suited for use by plumbers, pipefitters, HVAC installers, electricians, and general contractors who need reliable fastener hardware for heavy-duty connections.

This washer is appropriate for residential and commercial applications where a larger bearing surface is required, such as bolted flange connections, equipment mounting, structural assemblies, and utility installations. The galvanized finish makes it suitable for use in moderately corrosive or outdoor environments where bare steel would degrade quickly. It is sold individually, making it a practical choice for single-unit repair or replacement needs.

Key Features

• Extra thick 1/4-inch thickness for superior load distribution versus standard flat washers
• 1-1/16-inch inside diameter fits 1-inch screw or bolt shafts
• 3-1/4-inch outside diameter provides a wide bearing surface to reduce pull-through
• Steel construction with galvanized finish for corrosion resistance
• Inch-system dimensions for compatibility with standard US fastener hardware
• Sold in single-unit quantity for targeted repair or replacement use

Compatibility

Designed as an extra thick flat washer for use with 1-inch diameter screws and bolts in standard inch-system fastener assemblies across structural, mechanical, and trade applications.

Installation Notes

This washer is installed by the relevant licensed trade professional based on the application, including plumbers, electricians, and HVAC technicians. De-energize or shut off any associated systems before beginning fastener work on live equipment. Ensure the washer is seated flat against the mating surface with no debris between contact faces. Follow applicable local codes and torque specifications provided by the bolt or equipment manufacturer.