Value Collection SIWIS0430XUSA-050BX Lock Washer 7/16 in

Product Description

The VALUE COLLECTION SIWIS0430XUSA-050BX is a zinc-plated, steel internal tooth lock washer designed for use with 7/16-inch screws. It features an inside diameter of 0.4755 inches and an outside diameter of 0.6005 inches, making it a standard fastener component for securing bolted joints and preventing loosening under vibration. Manufactured from Grade 1075 steel with a zinc-plated finish for corrosion resistance, this washer is suitable for general mechanical and structural fastening applications. It is commonly installed by maintenance technicians, electricians, HVAC service professionals, and plumbers during equipment assembly or field repairs.

This internal tooth lock washer is used in a wide range of residential and commercial fastening applications where vibration or dynamic loads can cause fastener back-out. The internal tooth design bites into both the bearing surface of the fastener and the workpiece, providing reliable locking action. Typical installation scenarios include electrical panel assemblies, HVAC equipment mounting, plumbing fixture brackets, and general sheet metal or structural hardware applications requiring a compact, low-profile locking washer.

Key Features

• Internal tooth design provides consistent locking grip against both fastener and mating surface
• Grade 1075 steel construction for reliable tensile strength in standard fastening applications
• Zinc-plated finish offers basic corrosion resistance in indoor and sheltered environments
• 0.4755-inch inside diameter sized for use with 7/16-inch screws or bolts
• 0.6005-inch outside diameter keeps a compact footprint suitable for tight clearance installations
• Minimum order quantity of 50 units supports job-site stocking and bulk service use

Compatibility

Designed as a standard internal tooth lock washer for use with 7/16-inch screw fasteners in general mechanical, electrical, and HVAC assembly applications.

Installation Notes

Installation is performed by hand or with standard hand tools prior to fastener torquing. Place the washer flat against the workpiece surface with the teeth facing the fastener bearing surface before seating the screw or bolt. Ensure the mating surface is clean and free of debris to allow the teeth to engage properly. Always de-energize electrical equipment and follow applicable NEC or equipment-specific lockout-tagout procedures before performing fastener work on live assemblies.