Gibraltar Z9093-SS Extra Thick Flat Washer 3/4 in 18-8 Ss

Product Description

The GIBRALTAR Z9093-SS is an extra thick flat washer designed for use with 3/4-inch screws and fasteners. Manufactured from Grade 18-8 stainless steel, this washer provides corrosion resistance suitable for demanding environments including outdoor, marine-adjacent, and wet-location applications. The increased thickness of 1/4 inch distributes clamp load over a wider bearing surface compared to standard flat washers, reducing fastener pull-through in softer substrate materials. Plumbers, electricians, HVAC technicians, and general contractors use washers of this type when securing equipment, pipe hangers, strut channel, or structural connections that require additional load distribution.

This washer is suited for residential and light commercial construction, mechanical system installations, and maintenance applications where a standard-thickness washer would not provide sufficient bearing surface. The 18-8 stainless steel grade resists oxidation and is compatible with use in humid or corrosive environments such as mechanical rooms, rooftop equipment pads, and pool equipment enclosures. It installs with standard hand tools and is sold individually.

Key Features

• Extra thick profile at 1/4 inch provides enhanced load distribution over standard flat washers
• Grade 18-8 stainless steel construction for corrosion resistance in wet or outdoor environments
• 27/32-inch inside diameter sized for 3/4-inch screw or bolt shank clearance
• 1-1/2-inch outside diameter delivers broad bearing surface contact
• Inch measurement system for straightforward compatibility with standard US fastener sizing

Compatibility

Designed as an OEM-style replacement or standard hardware component for use with 3/4-inch screw and bolt fastener assemblies requiring an extra thick flat washer profile in stainless steel.

Installation Notes

Installation requires no special tooling beyond a correctly sized wrench or socket for the mating fastener. Power down or de-energize any equipment before replacing hardware on live mechanical or electrical assemblies. Follow applicable codes including NEC or IPC as relevant to the installation context. Do not over-torque the mating fastener, as excessive clamping force can deform the washer bearing surface.