Gibraltar Z9190-BEV Beveled Round Flat Washer 1-1/8 in

Product Description

The GIBRALTAR Z9190-BEV is a beveled round flat washer machined from 12L14 steel with a plain finish. It is designed for use with 1-1/8 inch screws and fasteners in structural and mechanical assembly applications. The washer features an inside diameter of 1-5/32 inches (1.1563 inches decimal), an outside diameter of 2-1/4 inches (2.2500 inches decimal), and a thickness of 5/16 inches (0.3125 inches decimal). The beveled seat distributes clamp load evenly across the bearing surface, reducing fastener loosening under vibration or dynamic loading. Tradespeople in HVAC, plumbing, electrical, and general mechanical work install this type of washer wherever a beveled bearing surface is required at a fastened joint.

This washer suits residential and light commercial mechanical assemblies, structural connections, and equipment mounting applications that call for a beveled round washer in the 1-1/8 inch screw size range. It is sold individually, making it practical for service replacement or low-volume repair work. The plain steel finish is appropriate for interior or protected installations where additional corrosion resistance is not required. Installers working with structural steel connections, equipment frames, or pipe support hardware will find this washer a straightforward fit for standard inch-measurement fastener systems.

Key Features

• Beveled seating surface distributes clamp load and resists fastener loosening under vibration
• 12L14 steel construction provides consistent machinability and dimensional accuracy
• Inside diameter of 1-5/32 inches fits standard 1-1/8 inch screw shanks with appropriate clearance
• Outside diameter of 2-1/4 inches provides a wide bearing surface for load distribution
• Thickness of 5/16 inches delivers solid support without excessive stack height
• Plain finish suits interior and protected-environment installations

Compatibility

Designed for use with 1-1/8 inch screws and bolts in standard inch-measurement fastener assemblies requiring a beveled round flat washer.

Installation Notes

This washer is installed by mechanics, millwrights, pipefitters, and general tradespeople as part of bolted joint assemblies. Always ensure the fastener and mating surface are clean and free of debris before seating the washer. Follow applicable torque specifications from the equipment manufacturer or relevant installation standard for the fastener size in use. Plain-finish steel washers should not be used in wet or corrosive environments without additional corrosion protection measures.