Graco 116303 Machine Screw Slotted Hex Washer Head

Graco 116303 Machine Screw Slotted Hex Washer Head

The Graco 116303 Machine Screw Slotted Hex Washer Head is a genuine OEM-grade machine screw designed for fastening metal components of Graco spray, pump, coating or fluid-handling equipment. The slotted drive and integrated hex-washer head enable reliable tightening with proper load distribution and secure fastening under operational stresses.

Where / How It's Used (Compatible Assemblies)

• Graco spray / airless-sprayer frames, housings or motor / pump mounting assemblies — wherever a machine screw fix is required.
• Covers, panels, or structural metal parts of Graco coating or fluid-handling systems that need secure, vibration-resistant fastening.

Product Features & Benefits

• Slotted + hex-washer head design: slot allows use of screwdriver; hex-washer head provides broad bearing surface to distribute load and protect the surface being fastened.
• Machine-screw type: ideal for pre-tapped holes or nut-based assemblies — ensures consistent fit, mechanical reliability, and ease of replacement.
• OEM-specified fastener: using genuine Graco 116303 ensures correct fit, torque behavior and compatibility with factory-designed assemblies — reduces risk of misfit or failure due to wrong fastener.
• Good for maintenance & replacement: when original screws wear out, corrode, strip or get lost — replacing with 116303 restores mechanical integrity and ensures parts stay securely fastened under vibration or operational stress.

When & Why to Replace / Use

• When original screws show wear, stripped threads or rust — to keep structural parts secure and avoid leaks, misalignment or damage.
• During overhaul or maintenance — always use OEM-specified fasteners like 116303 to maintain machine reliability and service life.
• If you are re-assembling parts after repair or maintenance — machine screws ensure consistent, factory-grade fastening.