The Euclid 3-1/16" Right Side Wheel End Inner Cap Nut is designed to ensure that your wheel stays securely attached. This inner Cap Nut is designed to rotate smoothly, providing better handling and performance for dual mounted steel and aluminum wheels applications. The inner thread has a minimum depth of 1-7/8", making it a reliable and durable choice for your wheel end needs. FleetPride is your First Click in Heavy Duty®.