Value Collection 93825 Internal Tooth Lock Washer 100-pack

Product Description

The VALUE COLLECTION 93825 is a stainless steel internal tooth lock washer designed to maintain fastener tension and resist loosening under vibration. With an inside diameter of 0.394 inches, an outside diameter of 0.41 inches, and a thickness of 0.025 inches, this washer seats tightly beneath screw heads or nuts to bite into mating surfaces and prevent rotation. Constructed from Grade 410 stainless steel, it provides corrosion resistance suitable for a wide range of mechanical, electrical, and plumbing assemblies. Each package contains 100 washers, making it practical for service kits and bench stock replenishment.

Internal tooth lock washers in this size range are commonly used with No. 12 screws in residential and light commercial applications. Typical uses include securing electrical components, panel assemblies, HVAC equipment covers, pump housings, and other hardware where vibration or thermal cycling could cause fasteners to back out over time. The internal tooth design keeps the washer centered on the fastener shank, which is useful in close-tolerance installations where external teeth would interfere with surrounding material.

Key Features

• Grade 410 stainless steel construction for corrosion resistance in demanding environments
• Internal tooth design keeps washer centered and bites into mating surface to resist loosening
• Inside diameter of 0.394 inches fits No. 12 screws
• Outside diameter of 0.41 inches and thickness of 0.025 inches for low-profile installation
• 100-piece package supports inventory stocking and service kit builds

Compatibility

Designed for use with No. 12 screws as an internal tooth lock washer in mechanical, electrical, and plumbing fastening applications requiring vibration resistance.

Installation Notes

Installation is performed by mechanics, electricians, and plumbers as part of standard fastener assembly. Place the washer flat against the mating surface with the teeth facing the workpiece before seating the screw or nut. Ensure the mating surface is clean and free of debris so the teeth can engage properly. Do not reuse lock washers that have been fully compressed, as they will not provide adequate locking force after the teeth have been flattened.