Value Collection 93805 External Tooth Lock Washer 100 Pack

Product Description

The VALUE COLLECTION 93805 is a No. 12 external tooth lock washer made from Grade 410 stainless steel. It is designed to resist loosening caused by vibration by biting into the bearing surface of a fastener and the mating material. The washer features an inside diameter of 0.231 inches, an outside diameter of 0.475 inches, and a thickness of 0.025 inches. It is suitable for use in corrosion-prone environments where stainless steel is required. This item is sold in a package of 100 washers, making it practical for production assembly, maintenance shops, and service vehicles.

External tooth lock washers in this size are commonly used with No. 12 machine screws in light mechanical assemblies, electrical enclosures, HVAC equipment panels, and plumbing fixture hardware. The external tooth design provides maximum locking force and is best suited for applications where the full washer face is visible and accessible. Grade 410 stainless steel offers a good balance of corrosion resistance and hardness, making these washers a reliable choice in moderate to mildly corrosive environments such as outdoor equipment housings or wet mechanical spaces.

Key Features

• External tooth design bites into bearing surface to resist vibration-induced loosening
• Grade 410 stainless steel construction for corrosion resistance and hardness
• Inside diameter of 0.231 inches fits No. 12 screw size
• Outside diameter of 0.475 inches and thickness of 0.025 inches
• Sold in a 100-piece package for high-volume service and assembly work

Compatibility

Designed for use with No. 12 machine screws and fasteners requiring an external tooth lock washer with a 0.231-inch inside diameter. Does not meet military specifications.

Installation Notes

Installation requires no special tools beyond standard hand or power drivers. Place the washer between the fastener head and the bearing surface with the teeth facing the fastener head side. Do not reuse lock washers once compressed, as the locking teeth will not re-engage effectively. Follow applicable assembly standards for torque specifications based on the fastener and base material in use.