1/2 Sp Lock Wash HDG

Overview The 1/2 Split Lock Washer HDG (05638) is designed for hardware fastener applications requiring resistance to threaded fastener loosening on ferrous and compatible mounting surfaces. Specification Detail MPN 05638 Brand Midwest Fastener Corp. Size 1/2" Finish Hot-Dip Galvanized (HDG) Type Split Lock Washer Category Hardware Fasteners > Washers Technical Features Split-ring design: The open, helical split creates spring tension against the fastener and mounting surface, generating friction that resists rotational loosening under vibration and dynamic loads. Hot-dip galvanized (HDG) finish: The zinc coating applied through the hot-dip galvanizing process provides corrosion resistance, making this washer suitable for outdoor, exposed, or moisture-prone installations. 1/2" sizing: Matches standard 1/2" threaded fasteners (bolts, screws, and nuts), ensuring proper seating and load distribution at the fastener interface. Applications Structural bolted connections in construction and fabrication where fastener vibration loosening is a concern. Outdoor and exposed installations where corrosion resistance from an HDG finish is required. General mechanical assemblies utilizing 1/2" threaded fasteners that require secondary locking without adhesive or chemical threadlockers.