Gibraltar Z9206SS Extra Thick Flat Washer 3/4 in 18-8 Ss

Product Description

The GIBRALTAR Z9206SS is an extra thick flat washer manufactured from 18-8 stainless steel with a plain finish. Designed for 3/4 inch screw sizes, it provides a broad bearing surface that distributes clamping load evenly across fastened assemblies. The 1/4 inch thickness makes it suitable for applications where standard flat washers lack the structural depth needed to prevent pull-through or surface damage. Rockwell C36-C42 hardness ensures the washer maintains its shape under significant compressive force. Plumbers, pipefitters, electricians, and general contractors reach for this grade when corrosion resistance and mechanical strength both matter.

This washer is used in residential and light commercial construction, mechanical rooms, and outdoor installations where exposure to moisture or mild corrosive environments is a concern. The 18-8 stainless steel composition resists rust and oxidation without surface coating, making it a reliable choice for plumbing, HVAC mounting hardware, electrical enclosure fastening, and structural connections where a plain stainless finish is specified.

Key Features

• Extra thick profile at 0.25 inches provides greater load distribution than standard flat washers
• 18-8 stainless steel construction offers corrosion resistance in wet and outdoor environments
• Rockwell C36-C42 hardness rating for reliable performance under compressive loads
• Plain finish with no added coating, suitable where bare stainless is required
• Inside diameter of 0.7813 inches fits 3/4 inch fasteners with proper clearance
• Outside diameter of 1.625 inches spreads clamp load over a wide bearing surface

Compatibility

Designed as an OEM-style replacement or direct-use flat washer for 3/4 inch fastener applications requiring an extra thick stainless steel washer in inch measurement systems.

Installation Notes

This washer is installed by hand prior to driving the fastener and requires no special tooling beyond what is used for the associated bolt or screw. Always power down or isolate the system before working on fastened assemblies in electrical or mechanical enclosures. Verify that the stainless steel grade is compatible with the mating fastener material to prevent galvanic corrosion in dissimilar-metal assemblies. Follow applicable mechanical or plumbing codes for fastener specifications in structural or pressure-bearing connections.