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The STEWART FASTENER J50WLZ is a jar of 100 zinc-plated split lock washers sized for 1/2-inch fastener applications. Lock washers of this type are used to resist loosening caused by vibration and torque relaxation in bolted joints. The zinc finish provides baseline corrosion resistance suitable for general indoor and light-duty outdoor use. Sold in a jar of 100 pieces, this format suits service vans, shop stock, and job-site supply where quick access to a standard size is needed.
These 1/2-inch lock washers are appropriate for mechanical and structural fastening tasks across residential and light commercial work. Electricians, HVAC technicians, plumbers, and general contractors regularly use split lock washers when securing equipment panels, pipe hangers, conduit straps, and mechanical components where vibration or thermal cycling could work fasteners loose over time.
Designed as a standard split lock washer for use with 1/2-inch bolts and nuts in general mechanical, electrical, plumbing, and HVAC fastening applications.
Split lock washers are installed between the fastener head or nut and the mating surface before torqueing the fastener. Ensure the fastener, washer, and mating material are compatible to avoid galvanic corrosion in wet or outdoor environments. Follow applicable codes and equipment manufacturer torque specifications when securing structural or pressure-bearing connections.
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