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The VALUE COLLECTION HLWIA050USA-100BX is a high collar split lock washer designed for use with 1/2 inch screws and bolts. Manufactured from steel with a bright uncoated finish, this washer provides mechanical locking action by biting into the fastener and mating surface when torque is applied. The high collar profile increases the bearing surface contact compared to standard split lock washers, distributing load more evenly and resisting loosening under vibration. Inside diameter ranges from 0.506 to 0.518 inches, maximum outside diameter is 0.737 inches, and washer thickness is 0.172 inches. Sold in a minimum order quantity of 100 pieces per box.
High collar split lock washers of this type are used across mechanical, structural, and equipment assembly applications where fastener self-loosening under vibration or dynamic loads is a concern. Typical installation scenarios include HVAC equipment assembly, electrical enclosure hardware, plumbing fixture mounting, and general industrial fastening. The uncoated steel construction suits interior and dry-service applications. This item is packaged as a single box containing 100 washers, making it well suited for service shops and contractors who need reliable hardware in quantity.
Designed for use with 1/2 inch screws and bolts in standard inch-measurement fastening applications.
Installation is performed by mechanics, assemblers, and trade professionals as part of standard fastening procedures. Place the washer on the fastener shank before threading into the mating surface, with the split ends positioned to bite into both surfaces as the fastener is tightened. Do not reuse split lock washers that have been fully compressed flat, as locking effectiveness is reduced. Follow applicable assembly standards and equipment manufacturer torque guidelines for the specific fastener and joint being assembled.
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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