Value Collection ITLW-10-316SS Lock Washer 10 Screw 316SS

Product Description

The VALUE COLLECTION ITLW-10-316SS is a Number 10 screw-size internal tooth lock washer manufactured from Grade 316 stainless steel. Internal tooth lock washers use serrated inner teeth that bite into the fastener bearing surface and the mating material, resisting rotational loosening under vibration and dynamic loads. The uncoated 316 stainless steel construction provides strong resistance to corrosion in wet, marine, and chemically aggressive environments. With an inside diameter of 0.204 inches and an outside diameter of 0.381 inches, this washer seats cleanly under a Number 10 fastener head. Plumbers, HVAC technicians, and electricians reach for 316SS hardware when installations face moisture, salt air, or chemical exposure.

This washer is suited for use in residential and light commercial installations where a Number 10 fastener is required and corrosion resistance is a priority. Typical applications include equipment mounting, panel fastening, pipe hanger assemblies, and any bolted joint exposed to water or humid conditions. The internal tooth profile keeps the washer centered on the fastener shank during assembly, making it practical for tight clearance installations where an external tooth washer would not fit.

Key Features

• Grade 316 stainless steel construction for superior corrosion resistance in wet and marine environments
• Internal tooth design bites into fastener and mating surface to resist vibration loosening
• 0.204 inch inside diameter sized for Number 10 screws
• 0.381 inch outside diameter fits under standard Number 10 fastener heads
• Uncoated finish eliminates coating delamination concerns in submerged or chemical-wash applications

Compatibility

Designed for use with Number 10 screw-size fasteners in standard bolted joint assemblies where an internal tooth lock washer is specified.

Installation Notes

Installation is performed by placing the washer over the fastener shank, centered on the internal teeth, before driving or torquing the fastener. Ensure mating surfaces are clean and free of debris so the teeth can engage fully. In corrosive environments, pair with Grade 316 stainless steel fasteners to avoid galvanic incompatibility. No special tools are required beyond standard hand or power driving equipment appropriate for the fastener type.