Gibraltar Z9466SET Spherical Washer Assembly 3/4 in

Product Description

The GIBRALTAR Z9466SET is a spherical washer assembly designed for 3/4 inch bolt applications requiring precise load distribution across misaligned or angled surfaces. The assembly includes a female washer with a 13/16 inch inside diameter and 1-5/8 inch outside diameter, paired with a male washer with a 25/32 inch inside diameter and matching 1-5/8 inch outside diameter. Each washer is 3/8 inch thick with a 2-1/4 inch radius spherical bearing surface. Manufactured from 12L14 grade case-hardened steel with a black oxide finish, the assembly is suited for structural fastening work where bolt and mating surface alignment is not perpendicular. Installers in industrial maintenance, millwright, and structural assembly trades use this type of hardware regularly.

Spherical washer assemblies are commonly used in structural bolted connections, machinery mounting, and equipment anchoring where angular misalignment between the fastener and the bearing surface must be compensated. The self-aligning spherical interface allows the assembly to seat properly even when surfaces are not parallel, reducing stress concentration on the bolt shank. This assembly is appropriate for both new installations and replacement hardware applications in industrial and commercial settings where 3/4 inch fasteners are specified.

Key Features

• Fits 3/4 inch bolts — female inside diameter 13/16 inches, male inside diameter 25/32 inches
• Matched outside diameter of 1-5/8 inches on both male and female washers
• 2-1/4 inch spherical radius allows angular compensation for misaligned bearing surfaces
• 3/8 inch washer thickness provides solid load-bearing cross section
• 12L14 case-hardened steel construction resists deformation under fastener clamp load
• Black oxide finish provides mild corrosion resistance and reduces galling during assembly

Compatibility

Designed as an OEM-style replacement or standard hardware component for structural and mechanical fastening applications using 3/4 inch bolts where a spherical self-aligning washer assembly is required.

Installation Notes

Installation is typically performed by millwrights, structural ironworkers, or maintenance mechanics. Ensure the mating bolt and structural surfaces are clean and free of debris before seating the assembly. The male washer seats against the structural surface and the female washer seats against the bolt head or nut — confirm proper orientation before applying torque. Consult applicable structural or machinery installation codes for specified fastener torque requirements, as these are not provided with the hardware itself.