Value Collection LWIS-12USA-500BX Split Lock Washer 500

Product Description

The VALUE COLLECTION LWIS-12USA-500BX is a 12 screw split lock washer designed to prevent fastener loosening under vibration and dynamic loads. Made from uncoated bright steel, each washer measures 0.22 inches minimum inside diameter with a maximum ID of 0.227 inches, an outside diameter ranging from 0.377 to 0.391 inches, and a thickness of 0.056 inches. The helical split design creates spring tension when compressed, biting into the mating surface and fastener head to resist rotation. These washers are sold in a box quantity of 500 and are suited for production assembly, maintenance, and general mechanical fastening applications.

Split lock washers in 12 screw size are commonly used in light mechanical assemblies, electrical enclosures, HVAC equipment panels, plumbing fixture mounting, and general industrial fastening where fastener retention under vibration is required. The inch measurement system and 12 screw sizing make these a standard fit for a broad range of domestic fastener applications across residential and commercial trade work. The bright uncoated finish is appropriate for interior and dry-environment use where corrosion resistance is not a primary concern.

Key Features

• Helical split design creates axial spring force to resist loosening under vibration
• 12 screw size with 0.22 to 0.227 inch inside diameter for precise fastener fit
• Outside diameter range of 0.377 to 0.391 inches provides consistent bearing surface
• 0.056 inch thickness delivers reliable lock force without excessive stack height
• Bright uncoated steel construction for standard interior fastening applications
• 500-piece box quantity supports production, bulk maintenance, and shop stock needs

Compatibility

Designed for use with 12 screw fasteners in inch-measurement fastening systems across general mechanical, electrical, HVAC, and plumbing assembly applications.

Installation Notes

Split lock washers are installed by a mechanic, assembler, or trade technician by placing the washer between the fastener head and the mating surface before final torque. Ensure the fastener and washer are properly aligned before driving to prevent washer damage. Do not reuse split lock washers once fully compressed flat, as the locking action is diminished. Always de-energize electrical panels or shut off relevant systems before servicing any fastened assembly.