Titan 704-598 Set Screw

Set screw 704-598 for Impact and RentSpray models

The 704-598 set screw is a threaded fastener used to secure components such as pulleys, gears, collars, or handles onto rotating shafts in compatible sprayer systems. It is specifically compatible with Impact 840 I and IA; Impact 440 service; Impact 640 I and IA; impact 640; impact 740; Impact 740-840; Impact 840 service; impact 1040; impact 1140 I and IA; Impact 1140 service; impact X 410; impact X 440; impact X 540i; RentSpray 500; and RentSpray 600 Impact models. Unlike standard screws, set screws are typically headless and are designed to be tightened with an Allen key. They are threaded through a hub or collar and press against the shaft to create a firm grip, preventing the component from slipping or rotating relative to the shaft. This is critical for maintaining proper timing, alignment, and power transmission. Set screws are made from hardened steel to withstand high clamping forces and resist stripping. Over time, set screws can become stripped, corroded, or lost. A missing or damaged set screw can allow a component to slip, causing misalignment, noise, and equipment malfunction. Symptoms of a problem include a slipping pulley or gear, unusual noises, or visible movement of a component on its shaft. Replacing a worn or missing set screw with this genuine part restores a secure connection and reliable operation. When installing, it is important to ensure the screw engages the shaft correctly and is tightened to the recommended torque.