The GRACO 551903 is a cap screw with a 1/4-20 thread and a length of 1/2 inch. It is typically used as a fastening component within GRACO equipment, such as the HydroShield™ Automatic Air Spray Batch Water System. The material is not specified in available documentation, but such screws are commonly made from steel or stainless steel for durability and corrosion resistance.

Key Features:

• Cap Screw
• 1/4-20 X 1/2
• Compatible with GRACO HydroShield™ Automatic Air Spray Batch Water System and other equipment where specified
• Standard cap screw design for secure fastening
• Reliable for use in industrial equipment
• Easy to install and replace

Applications:
Used as a fastening component in GRACO equipment, particularly in the HydroShield™ Automatic Air Spray Batch Water System and similar industrial fluid handling systems.

Installation Notes:

• Using genuine GRACO parts ensures proper fit, function, and safety within GRACO equipment, reducing the risk of equipment failure or malfunction.
• Ensure the screw is tightened to the manufacturer's recommended torque specifications
• Inspect the screw and mating threads for damage before installation
• Use appropriate tools to avoid stripping the threads
• Regularly inspect screws for signs of wear, corrosion, or loosening
• Replace damaged or worn screws promptly to maintain equipment integrity