Gibraltar SP-2SS-G Spherical Washer Assembly 1/2 in Ss

Product Description

The GIBRALTAR SP-2SS-G is a stainless steel spherical washer assembly designed to accommodate angular misalignment between a bolt and its mating surface. The assembly pairs a male and female spherical washer to distribute load evenly and reduce stress concentration at the fastener head or nut bearing face. Manufactured from 303 grade stainless steel, the SP-2SS-G resists corrosion in wet, outdoor, and chemically active environments. It fits a 1/2 inch bolt and features a 17/32 inch inside diameter, a 1-1/8 inch outside diameter, and a 5/16 inch thickness. The 1-1/2 inch radius spherical seat allows the assembly to self-align under load. Installed by millwrights, pipefitters, structural fitters, and maintenance mechanics.

The SP-2SS-G spherical washer assembly is used in structural connections, machine bases, pipe supports, and equipment mounting applications where bolt axes may not be perfectly perpendicular to the clamping surfaces. Its 303 stainless steel construction makes it suitable for marine, food processing, chemical processing, and outdoor structural installations. The self-aligning geometry prevents uneven loading on the fastener shank, which helps maintain clamp force and reduces the risk of premature fastener fatigue in vibration-prone assemblies.

Key Features

• 303 grade stainless steel construction for corrosion resistance in harsh environments
• Spherical seat with 1-1/2 inch radius compensates for angular misalignment between bolt and bearing surface
• 17/32 inch inside diameter fits standard 1/2 inch bolts
• 1-1/8 inch outside diameter and 5/16 inch thickness suit compact fastener patterns
• Male and female washer pair distributes clamp load evenly across the joint

Compatibility

Designed as a standard spherical washer assembly for use with 1/2 inch bolts in structural, mechanical, and pipe support applications requiring self-aligning load distribution.

Installation Notes

Installation is performed by qualified mechanics, millwrights, or pipefitters following applicable structural or mechanical codes. Ensure the mating surfaces are clean and free of debris before seating the assembly. The female washer seats against the fixed surface and the male washer seats under the fastener head or nut to allow angular compensation. Torque the fastener to the value specified in the applicable design or engineering documentation for the joint being assembled.