The Flange Wheel Nut – 5/8"-18 – is built for high-load wheel mounting applications, including 17.5" flat service wheels and 16" dual wheels on commercial trailers, trucks, and agricultural vehicles. Designed with a wide flange base for better pressure distribution and a Cr+3 zinc-plated steel body for maximum corrosion protection, this nut ensures secure, long-lasting fastening. Detailed Information: Nut Type Flange Wheel Nut Thread Size 5/8"-18 Height 1" Flange Diameter 1-9/16" Socket Size 1-1/8" Material Cr+3 Zinc-Plated Steel Fitting: Compatible with 5/8"-18 threaded wheel studs. Ideal for mounting 17.5" flat service wheels and 16" dual wheels on commercial trailers, heavy-duty trucks, and farm equipment. Features: Heavy-Duty Construction: High-strength steel for demanding applications. Corrosion Resistant: Cr+3 zinc plating protects against environmental wear. Flange Design: Distributes clamping force evenly to protect wheels. Secure Fit: Engineered for stability and vibration resistance. Easy Installation: Installs with a 1-1/8" socket. Interchangeable Part Numbers: L-176321 Product Overview: The Flange Wheel Nut – 5/8"-18 – For 17.5"/16" Dual Wheels | DXT delivers secure, rust-resistant wheel fastening in heavy-duty environments. Its precision-machined threads and wide flange ensure a firm and even clamp, making it a reliable solution for trailers, trucks, and agricultural equipment. With easy installation and durable construction, this nut meets the needs of high-torque applications.