Value Collection C611020 Internal Tooth Lock Washer 100 Pack

Product Description

The VALUE COLLECTION C611020 is a 4 screw internal tooth lock washer designed to resist loosening caused by vibration and dynamic loads in bolted assemblies. Manufactured from Grade 2 steel with a zinc-plated finish, it provides reliable corrosion resistance in standard indoor and light-duty industrial applications. The internal tooth design bites into the bearing surface and fastener head simultaneously, maintaining clamp load under service conditions. Each package contains 100 washers. With a thickness of 0.015 inches and an inside diameter range of 0.116 to 0.123 inches, this washer is sized for use with 4 screw hardware.

Internal tooth lock washers in this size range are commonly used in light electrical assemblies, control panel fabrication, small appliance manufacturing, HVAC equipment assembly, and general mechanical applications where a 4 screw fastener is specified. The zinc plating makes them suitable for use in environments where mild moisture exposure is possible. Electricians, HVAC technicians, and mechanical assemblers routinely use this style of washer when securing terminal hardware, mounting brackets, and panel components.

Key Features

• Internal tooth design grips both fastener and mating surface to resist loosening under vibration
• Grade 2 steel construction for consistent mechanical performance in standard-duty applications
• Zinc-plated finish provides corrosion resistance for general indoor and light-duty use
• Sized for 4 screw hardware with inside diameter range of 0.116 to 0.123 inches
• Sold in a 100-piece package for bench stock and maintenance inventory

Compatibility

Designed as a standard internal tooth lock washer for use with 4 screw fasteners in general mechanical, electrical, and HVAC assembly applications.

Installation Notes

Installation does not require specialized tools beyond standard hand or power drivers appropriate for 4 screw hardware. Place the washer between the fastener head and the mating surface, teeth facing the bearing surface, before driving the fastener to the specified torque for the assembly. De-energize electrical equipment and follow applicable NEC guidelines before servicing any panel or control assembly. Do not reuse lock washers that have been fully compressed, as tooth engagement may be reduced after a single torque cycle.