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The VALUE COLLECTION LWIS0561USA-100BX is a Grade 2 spring steel split lock washer designed for use with 9/16 inch screws. The split lock design creates tension under a fastener head or nut, resisting loosening caused by vibration and torque relaxation. The washer carries a zinc yellow dichromate finish that provides corrosion resistance in light-duty environments. With an inside diameter ranging from 0.564 to 0.574 inches and a maximum outside diameter of 0.965 inches, this washer meets standard dimensional requirements for 9/16 inch fastener assemblies. Each order fulfills a minimum quantity of 100 washers packaged as a single unit.
This split lock washer is suited for general mechanical assembly applications in residential, commercial, and light industrial settings. Common installation scenarios include equipment mounting, panel assembly, and structural fastening where vibration may work fasteners loose over time. The zinc yellow dichromate finish makes it appropriate for indoor and limited-exposure outdoor use where moderate corrosion protection is needed. Electricians, HVAC technicians, pipefitters, and general maintenance professionals regularly use this washer type as part of standard fastener assemblies.
Designed for use with 9/16 inch screws and bolts in standard inch-measurement fastener assemblies.
Install split lock washers between the fastener head or nut and the mating surface before final torque is applied. Ensure the mating surfaces are clean and free of debris to allow proper seating of the washer. Do not reuse split lock washers that have been fully compressed or show signs of deformation, as they will not provide reliable locking performance. Always follow applicable assembly specifications and fastener standards for the specific application.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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