Gibraltar 7285-7295-G Spherical Washer Assembly 1/4 in

Product Description

The GIBRALTAR 7285-7295-G is a stainless steel spherical washer assembly designed for use with 1/4 inch bolts. The assembly consists of a mated male and female washer set that self-aligns under load, compensating for angular misalignment between a bolt and its mating surface. The female washer measures 9/32 inches inside diameter by 1/2 inches outside diameter. The male washer measures 7/16 inches outside diameter with a 9/32 inches inside diameter and sits 17/64 inches thick with a 7/64 inches radius. Both components are machined from 303 grade stainless steel for corrosion resistance. This assembly is installed by maintenance technicians, millwrights, and mechanical contractors in bolted joint applications where surface alignment cannot be guaranteed.

Spherical washer assemblies are used in structural, mechanical, and industrial bolted connections where the bolt axis is not perfectly perpendicular to the bearing surface. Common applications include equipment mounting, conveyor frames, structural steel connections, and machinery bases. The 303 grade stainless steel construction makes this assembly well suited for environments with moisture exposure or mild chemical contact. The 3/32 inch chamfer on the assembly aids in seating and positioning during installation.

Key Features

• Self-aligning spherical geometry compensates for angular bolt misalignment
• 303 grade stainless steel construction for corrosion resistance
• Female washer: 9/32 inches inside diameter, 1/2 inches outside diameter
• Male washer: 7/16 inches outside diameter, 17/64 inches thick, 7/64 inches radius
• 3/32 inch chamfer for improved seating during assembly
• Fits 1/4 inch bolt size

Compatibility

Designed for use with 1/4 inch bolts in mechanical and structural bolted joint applications requiring angular self-alignment.

Installation Notes

Install the female washer against the fixed bearing surface and the male washer under the bolt head or nut. Ensure the spherical faces are mated correctly before torquing. De-energize and lock out any equipment before servicing fastened assemblies per applicable safety procedures. Do not mix with washers of differing material grades in corrosion-sensitive environments.