Precision Brand 26155 Round Shim Spring Steel 5/16 in Pack 50

Product Description

The PRECISION BRAND 26155 is a round shortening shim made from 1075 spring steel, designed to fill gaps, adjust clearances, and align components in mechanical assemblies. At 0.0150 inches thick with a 0.3130-inch inside diameter and 0.4240-inch outside diameter, this shim provides precise dimensional control under load. The spring steel construction delivers consistent resilience and resistance to deformation, making it suitable for applications where shimming accuracy and material integrity are critical. Each package contains 50 shims. Installation is typically performed by millwrights, maintenance mechanics, or other trade professionals working on equipment alignment and assembly.

This shim is suited for use in industrial, commercial, and mechanical maintenance applications where close-tolerance spacing is required. It fits 5/16-inch screw sizes and is classified as a shortening shim, used to reduce stack height or fill gaps between mating surfaces. Common install scenarios include bearing seats, flange faces, shaft collars, and general mechanical component alignment on production equipment or machinery.

Key Features

• Shortening shim type for reducing gap or stack height in mechanical assemblies
• 1075 spring steel construction for durability and consistent load resistance
• 0.0150-inch thickness with a tight tolerance of plus or minus 0.00075 inches
• Inside diameter of 0.3130 inches fits 5/16-inch screw or shoulder diameter
• Outside diameter of 0.4240 inches for compact, space-saving fitment
• Packaged in quantities of 50 shims per package for job-site efficiency

Compatibility

Designed as an OEM-style replacement or standard shim for mechanical assemblies requiring a 5/16-inch screw size and 0.0150-inch thickness in spring steel construction.

Installation Notes

Installation is performed by qualified mechanics or maintenance technicians. Always de-energize and lockout-tagout equipment before disassembling any mechanical assembly to insert or replace shims. Use calibrated measuring tools to verify stack height and alignment tolerances before final fastener torque. Do not deform or re-use damaged shims, as this compromises dimensional accuracy.