L H Dottie Co LW12 Lock Washer 1/2 Inch Zinc 100 Pack

Product Description

The L H Dottie Co LW12 is a split lock washer designed to prevent fastener loosening under vibration and load. Available in a 100-piece pack, these washers feature a 1/2 inch nominal size and a zinc plated finish for corrosion resistance in typical indoor and light-duty outdoor applications. They are a standard hardware item installed by electricians, plumbers, HVAC technicians, and general contractors when securing bolts, nuts, and machine screws in equipment, panels, enclosures, and structural connections.

These lock washers suit a wide range of trade applications where fastener retention is required. Common uses include electrical panel and conduit support installations, HVAC equipment mounting, plumbing fixture and pipe support assemblies, and general mechanical connections. The zinc plating provides a baseline level of protection against rust in environments with low to moderate moisture exposure. The 100-piece pack quantity supports job-site stock and service van inventory for ongoing maintenance and installation work.

Key Features

• 1/2 inch nominal size for use with standard 1/2 inch fasteners
• Zinc plated finish provides corrosion resistance for general-purpose applications
• Split lock washer design bites into mating surfaces to resist loosening under vibration
• 100-piece pack supports bulk stocking for service and installation crews
• Suitable for use across electrical, HVAC, plumbing, and mechanical trades

Compatibility

Designed as a general-purpose replacement or stock split lock washer for use with standard 1/2 inch bolts and nuts in electrical, HVAC, plumbing, and mechanical fastening applications.

Installation Notes

Lock washers are installed by any trade technician performing bolted connections in equipment or structural assemblies. Place the lock washer between the nut and the mating surface before torquing the fastener. Follow applicable codes such as the NEC for electrical applications or the IPC and IFGC for plumbing and gas installations when selecting hardware for specific systems. Do not reuse lock washers that have been fully compressed, as they will no longer provide effective locking force.