NUT - 1 3/4" - 12; 6 SLOT CASTLE

Spindle Nut – 1‑3/4"‑12 Thread, 6‑Slot Castle Nut for 12K–16K Trailer Axles This heavy‑duty 6‑slot castle spindle nut is designed for securing hub and bearing assemblies on 12,000‑lb to 16,000‑lb trailer axles. With a 1‑3/4"‑12 thread, it provides a precise fit and reliable retention for high‑capacity commercial, industrial, and equipment trailers. The castle‑style design allows for cotter‑pin locking to prevent loosening under load, vibration, or extended use. Manufactured from high‑strength steel, this nut delivers long‑lasting durability and dependable performance in demanding applications.