48S783 - Walter Replacement Clamping Nut for Backing Pads

Genuine Replacement Hardware for Walter Abrasive Systems

The Walter Surface Technologies 48-S 783 Screw (commonly referred to as a clamping nut) is a critical component for the safe and effective operation of resin fiber disc assemblies on angle grinders. Designed with precision engineering, this replacement part is manufactured to the exact specifications required by Walter's high-performance backing pads. In industrial environments where grinding downtime equates to lost productivity, having the correct replacement hardware on hand is essential for maintenance and repair operations.

This clamping nut is constructed from high-grade hardened steel, ensuring it can withstand the immense torque and heat generated during heavy-duty grinding and blending applications. It features a specific thread pitch and depth designed to engage securely with the angle grinder spindle while compressing the fiber disc against the backing pad. This secure mechanical lock prevents the disc from slipping or spinning independently of the pad, which is a common safety hazard with mismatched or worn-out hardware.

The 48-S 783 is compatible with a wide range of Walter backing pads, including standard and Turbo pads in 4-1/2 inch, 5-inch, and 7-inch diameters. Its low-profile geometry is a key design feature; it sits recessed within the center of the abrasive disc, ensuring that the metal nut does not make contact with the workpiece when grinding at flat angles. This prevents accidental gouging or marring of the base material, preserving the surface finish quality that Walter abrasives are known for.

Regular inspection of backing pad assemblies is recommended for safety. If the threads on your existing clamping nut show signs of wear, cross-threading, or rounding, immediate replacement with the 48-S 783 is necessary to maintain the structural integrity of the grinding setup. This part is an OEM direct replacement, guaranteeing a perfect fit and restoring your equipment to its original operational standard.