Norton 63642504918 Disc Backing Pad Locking Nut 5/8-11

Product Description

The NORTON 63642504918 is a locking nut disc backing pad designed to mount and support abrasive discs on angle grinders and disc sanders during surface preparation, grinding, and finishing work. It features a 5/8-11 female thread connection and is rated for a maximum speed of 12,000 RPM. The medium-density pad backing provides consistent disc support across the working face. This backing pad is installed by grinding and surface prep professionals in metal fabrication, welding cleanup, and general industrial maintenance applications.

This backing pad is suited for use with compatible abrasive grinding and finishing discs in industrial and commercial settings. It is commonly used in metal fabrication shops, construction sites, and maintenance environments where angle grinder work requires reliable disc retention. The 5/8-11 female thread is a standard thread size found on most angle grinders in this class, making this pad a practical replacement or spare for high-use grinding operations.

Key Features

• Locking nut design secures abrasive discs firmly to the backing pad during operation
• 5/8-11 female thread for standard angle grinder spindle compatibility
• Rated to 12,000 RPM maximum for safe high-speed grinding use
• Medium density backing provides even disc support and consistent contact
• Sold individually as a single unit

Compatibility

Designed as a replacement disc backing pad for angle grinders and disc sanders equipped with a 5/8-11 threaded spindle.

Installation Notes

Installation is performed by grinding and surface prep technicians. Always disconnect or de-energize the tool before changing backing pads or abrasive discs. Confirm that the tool spindle thread matches the 5/8-11 female thread before mounting. Never operate the pad above its rated maximum RPM of 12,000, and inspect the pad for wear or damage before each use.