Value Collection LWHIS-120USA-100BX No.12 Split Lock Washer

Product Description

The VALUE COLLECTION LWHIS-120USA-100BX is a No. 12 split lock washer manufactured from Grade 2 spring steel with a zinc plated finish. Split lock washers apply spring tension under a fastener head or nut to resist loosening from vibration and torque relaxation. This washer measures 0.22 inches inside diameter, up to 0.391 inches maximum outside diameter, and 0.063 inches thick. It is used in general mechanical assembly and structural fastening applications where a standard No. 12 screw requires reliable locking action. Zinc plating provides basic corrosion resistance for indoor and light-duty outdoor use.

This washer is suited for residential and light commercial fastening work across HVAC equipment assembly, electrical panel and enclosure work, plumbing fixture mounting, and general mechanical applications. It pairs with No. 12 machine screws in metal-to-metal and metal-to-substrate joints. The package contains 100 washers, making it appropriate for service vehicles, job site stock, and production assembly operations where this size sees regular use.

Key Features

• Grade 2 spring steel construction delivers consistent spring tension and bite under load
• Zinc plated finish provides basic corrosion resistance for general-purpose environments
• 0.22 inches ID fits No. 12 screws directly without modification
• 0.063 inches thickness meets standard dimensional requirements for this screw size
• 100-piece pack supports bulk stocking for service and production use
• Inch-system dimensioning for compatibility with standard US fastener specifications

Compatibility

Designed for use with No. 12 machine screws and corresponding nuts in standard inch-series fastener assemblies. Inside diameter range of 0.22 to 0.227 inches accommodates standard No. 12 screw shanks.

Installation Notes

Split lock washers are installed between the fastener head or nut and the mating surface before final torque is applied. De-energize any electrical equipment and follow applicable lockout-tagout procedures before working on assemblies that require washer replacement or fastener service. Do not reuse split lock washers that have been fully compressed flat, as they will not provide effective locking action. Fastener installation should follow applicable code requirements including NEC for electrical applications and IFGC or IPC for mechanical and plumbing assemblies.