Value Collection 03WE External Tooth Lock Washer 3 Screw

Product Description

The VALUE COLLECTION 03WE is a Number 3 screw-size external tooth lock washer designed to resist loosening caused by vibration and dynamic loads in fastened assemblies. The washer features serrated external teeth that bite into both the bearing surface of the fastener and the workpiece material, creating mechanical resistance to rotation. Made from Grade 2 spring steel with a zinc-plated finish, it measures 0.109 inches inside diameter and 0.235 inches outside diameter, with a thickness of 0.015 inches. Hardness is rated at 40-50 HRC. This part is installed by maintenance technicians, electricians, HVAC technicians, and mechanical assemblers working with small-screw fastener applications.

External tooth lock washers in this size class are commonly used in light-gauge sheet metal assemblies, electrical panel enclosures, HVAC equipment housings, and general mechanical assemblies where a Number 3 screw fastener is specified. The zinc-plated finish provides basic corrosion resistance suitable for indoor and sheltered environments. The spring steel construction allows the teeth to maintain clamping force under operational vibration without permanent deformation.

Key Features

• External tooth configuration provides high resistance to rotational loosening under vibration
• Grade 2 spring steel construction with 40-50 HRC hardness for reliable tooth engagement
• Zinc-plated finish for basic corrosion resistance in sheltered applications
• 0.109 inch inside diameter sized for Number 3 screw fasteners
• 0.015 inch nominal thickness fits tight-clearance assemblies

Compatibility

Designed for use with Number 3 screw fasteners. Suitable for light-gauge metal assemblies, electrical enclosures, and general mechanical fastening applications requiring an external tooth lock washer at this screw size.

Installation Notes

Install with the toothed face contacting the bearing surface of the fastener head, not the workpiece substrate, unless the assembly drawing specifies otherwise. Ensure the mating surface is clean and free of coatings that would prevent tooth engagement. Do not reuse lock washers after disassembly, as the teeth may not re-engage effectively. Follow applicable mechanical assembly standards and torque specifications as defined by the fastener and assembly manufacturer.