5/16" Screw, 0.332" ID, Steel Internal Tooth & External Tooth Lock Washer MPN:SEIWIS0310USA-1

Internal and external tooth lock washers are designed for bolts or screws, securing two pieces of metal together by preventing loosening under vibration, providing extra strength and torque resistance in bolt connections with varying surface conditions. The 5/16in diameter size suits various applications requiring both light-duty to heavy-duty clamping performance on wood, steel or aluminum structures such as furniture assembly, machines, vehicles, electronics or equipment support systems where bolts are exposed to frequent movement, shock, or stress conditions. This package comes with two lock washers ensuring versatile options for tackling several bolt securing projects with ease.