[9000 BULK] Lock Washers Internal Tooth Steel Black Oxide #5/16

Lock Washers Internal Tooth Steel Black Oxide #5/16 deliver reliable vibration resistance and secure fastening in a compact, durable washer. The internal tooth design bites into the mating surface to help prevent loosening under dynamic loads, making it ideal for assemblies exposed to movement and chatter. Built from steel and finished in a durable black oxide, this washer combines strength with a corrosion-resistant and discreet appearance.

• Internal tooth design: bites into the mating surface to resist loosening from vibration.
• Material and finish: high-strength steel with a black oxide coating for durability and a sleek look.
• Size compatibility: sized for #5/16 inch fasteners, providing a precise fit for secure assemblies.
• Locking performance: helps maintain clamped load and reduces the risk of hardware failure in dynamic applications.
• Versatile applications: suitable for automotive, machinery, and general hardware assemblies where a dependable lock is needed.

Usage tips: place the washer under the bolt head or nut on a clean, flat surface, then tighten to the manufacturer's specification. The teeth will engage the surface to maximize locking efficiency, while the steel construction ensures long-lasting performance in everyday environments.