48H472 - Walter Line-Mate III M4 Replacement Shoulder Bolt

Genuine Walter Replacement Hardware

The Walter 48H472 M4 Shoulder Bolt is a critical replacement component designed specifically for the maintenance and repair of Walter Surface Technologies' high-performance finishing tools. Primarily utilized within the assembly of the Line-Mate III linear finishing system, this bolt plays a pivotal role in securing expansion drums and other rotating accessories to the tool's drive spindle. In industrial environments where surface finishing tools are subjected to high RPMs and continuous vibration, the integrity of every fastener is paramount to operator safety and finish quality.

Precision Engineering

Unlike standard threaded fasteners, a shoulder bolt like the 48H472 features an unthreaded cylindrical section (the shoulder) between the head and the threads. This design allows the bolt to act as a precision axle or dowel, providing a smooth bearing surface for rotating parts or ensuring exact alignment between components. The M4 threads are machined to tight tolerances to ensure a secure hold without the risk of cross-threading or loosening under load. Manufactured from high-grade steel, this bolt offers the tensile strength required to withstand the torque and centrifugal forces generated during heavy-duty grinding and polishing operations.

Maintenance and Safety

Regular inspection of your power tool's hardware is a key aspect of preventative maintenance. A worn, bent, or stripped shoulder bolt can lead to accessory wobble, increased vibration, and uneven finishing results. In worst-case scenarios, fastener failure can cause accessories to detach during operation. By choosing the genuine Walter 48H472 replacement part, you ensure that your Line-Mate tool retains its original factory specifications for balance and safety. This part is essential for MRO (Maintenance, Repair, and Operations) professionals looking to extend the service life of their Walter equipment inventory.

Application

This bolt is typically used to secure the pneumatic expansion drum or other keyed accessories to the Line-Mate III. It ensures that the torque from the motor is effectively transferred to the abrasive medium without slippage or misalignment. When replacing this part, it is recommended to also inspect the mating threads on the spindle and the condition of any washers or spacers in the assembly to ensure a complete and lasting repair.