Gibraltar SP-01SS-G Spherical Washer Assembly 5/16 in

Product Description

The GIBRALTAR SP-01SS-G is a stainless steel spherical washer assembly designed for use with 5/16 inch bolts. The assembly pairs a male and female spherical washer to accommodate angular misalignment between a bolt and mating surface, distributing load evenly and reducing stress concentrations at the fastener head. Manufactured from 303 grade stainless steel, the assembly resists corrosion in wet, chemical, or outdoor environments. Key dimensions include an 11/32 inch inside diameter, 3/4 inch outside diameter, 1/4 inch thickness, and a 1 inch radius. Licensed tradespeople and maintenance technicians install these assemblies where precise bolt alignment cannot be guaranteed or where surface angles vary.

Spherical washer assemblies are used across HVAC equipment mounting, plumbing fixture support, electrical panel bracing, and general mechanical assembly applications. They are particularly useful in installations where structural members are not perfectly perpendicular to the fastener axis, such as angled brackets, sloped surfaces, or skewed flanges. The 303 grade stainless steel construction makes this assembly well suited for corrosive environments including outdoor mechanical equipment pads, pool equipment enclosures, and marine-adjacent installations. Sold as a single assembly per package.

Key Features

• 303 grade stainless steel construction for corrosion resistance in wet and outdoor environments
• Spherical mating surfaces self-align to compensate for angular bolt misalignment
• Fits 5/16 inch bolt size with 11/32 inch inside diameter on both male and female components
• 3/4 inch outside diameter provides broad load distribution across the fastener face
• 1/4 inch total thickness with 1 inch radius spherical geometry
• Sold as a complete male and female washer assembly, ready to install

Compatibility

Designed for use with 5/16 inch bolts and fasteners requiring spherical seat alignment. Fits applications where both male and female washer components share an 11/32 inch inside diameter and 3/4 inch outside diameter.

Installation Notes

Install with the concave female washer seated against the fixed surface and the convex male washer seated under the bolt head or nut. Power down or de-energize any associated equipment before performing fastener work on mechanical or electrical systems. Follow applicable torque guidelines specified by the equipment manufacturer or governing mechanical codes. Stainless steel fasteners are susceptible to galling under high torque; apply an anti-seize compound when tightening to prevent thread damage.