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The VALUE COLLECTION -30722-1 is a 316 stainless steel split lock washer sized for 7/16-inch screws. Split lock washers apply spring tension under fastener heads to resist loosening caused by vibration, thermal cycling, and dynamic loads. The 316 alloy provides strong resistance to corrosion in wet, chlorinated, and mildly acidic environments, making it a sound choice for plumbing, HVAC, pool equipment, and marine-adjacent mechanical assemblies. At 0.109 inches thick, this washer meets standard dimensional tolerances for 7/16-inch fastener hardware. Installation requires no tools beyond standard torque equipment and takes seconds per fastener.
This washer is suited for residential and light commercial applications where fastener security and corrosion resistance are both required. Typical use cases include pipe hangers, equipment mounting brackets, pump housings, electrical enclosures, and pool or water treatment equipment where hardware contacts corrosive water or chemicals. Electricians, HVAC technicians, plumbers, and pool service pros commonly use 316 stainless fastener hardware in these environments.
Designed as a standard-dimensional split lock washer for use with 7/16-inch fasteners in inch-measurement assemblies.
Installation is performed by placing the washer over the fastener shank before threading the fastener into the mating component. Power down or de-energize any electrical or mechanical system before working on fastened assemblies. Apply torque per the fastener manufacturer specification for the fastener grade and size in use. Do not mix stainless steel fastener hardware with dissimilar metals in submerged or high-moisture environments without accounting for galvanic corrosion potential.
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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