Graco 17W986 Countersunk Lock Washer 5/16" replaces Graco ECLW.312

Compatible Machines & OEM Fitment

• Graco **Sprayer Assemblies** requiring lock washer hardware
• Graco **Edger and Drum Systems** with 5/16 fastening points

Graco 17W986 **Washer, 5/16″ Lock**

The Graco 17W986 **Washer, 5/16″ Lock** is a genuine lock washer designed to prevent loosening under vibration and load. It’s used in fastening assemblies where secure thread‑locking is essential.

Product Overview

• OEM Lock Washer: Keeps fasteners secure under dynamic loads.
• Precise fit: Matches 5/16″ hardware dimensions.
• Durable material: Resists shear and deformation in service.

Frequently Asked Questions