1-3/8" Screw, 1.418" ID, Steel Internal Tooth Lock Washer MPN:SIWIS1370USA-01

1-3/8 Screw, 1.418 ID, Steel Internal Tooth Lock Washer is a precision lock washer designed for use with screws that require a larger grip range than typical hex nuts or plain lockwashers. Its internal teeth bite into the bearing surface of the mating nut preventing loosening from vibration or stress, while its external serrations ensure proper positioning and extra pressure distribution for secure fastening. This product is made from sturdy steel material making it durable and long lasting, making it ideal for heavy duty applications in various industries such as construction, automotive, and manufacturing among others.