Gibraltar Z9191-BEV-H Beveled Round Flat Washer 1-1/4 in

Product Description

The GIBRALTAR Z9191-BEV-H is a beveled round flat washer designed for use with 1-1/4 inch screws and fastener assemblies requiring a load-distributing interface on angled or tapered surfaces. Manufactured from case-hardened 12L14 steel with a plain finish, this washer provides the hardness needed to resist deformation under high clamping loads. The beveled profile accommodates non-parallel mating surfaces, making it a dependable choice in structural and mechanical fastening applications. With an inside diameter of 1-9/32 inches and an outside diameter of 2-1/4 inches, it seats cleanly over standard 1-1/4 inch fastener shanks.

This washer is suited for use in heavy mechanical assemblies, structural steel connections, industrial equipment installation, and trade work requiring load distribution across beveled or flanged joint surfaces. It is commonly specified in commercial construction, HVAC equipment mounting, and industrial piping support applications where fastener integrity under load is critical. The plain finish makes it appropriate for dry or protected indoor environments. It is typically installed by millwrights, ironworkers, pipefitters, or general trade mechanics working with large-diameter fastener hardware.

Key Features

• Beveled profile accommodates angled or tapered mating surfaces in structural fastener assemblies
• Case-hardened 12L14 steel construction resists deformation under high clamping loads
• Inside diameter of 1-9/32 inches fits standard 1-1/4 inch screw and bolt shanks
• Outside diameter of 2-1/4 inches provides broad load distribution across joint surfaces
• Thickness of 5/16 inches delivers rigid standoff without flex under compressive loading
• Plain finish suitable for protected or indoor installations

Compatibility

Designed for use with 1-1/4 inch fasteners in mechanical and structural assemblies requiring a beveled round washer with case-hardened steel construction.

Installation Notes

Installation is performed by qualified trade mechanics or ironworkers as part of bolted joint assembly. Ensure the fastener shank is clean and free of burrs before seating the washer. Torque the fastener to the specification required by the joint design or applicable code -- do not rely on washer compression alone as a torque indicator. For structural applications, consult applicable AISC or local building code requirements governing fastener assembly.