Value Collection 31289 Castle Lock Nut 1-14 Grade 5 Zinc 25pk

Product Description

The VALUE COLLECTION 31289 is a castle lock nut designed for secure fastening in applications where positive locking is required. The castellated crown accepts a cotter pin or safety wire that passes through a drilled bolt or shaft, preventing the nut from backing off under vibration or dynamic loading. Built to Grade 5 steel with a zinc finish for basic corrosion resistance, this nut meets SAE J995 standards and carries a 1-14 thread size in the inch measurement system with right-hand threading. It is sold in a package of 25 units, making it suited for shop stock or job lot replenishment.

Castle lock nuts in the 1-14 thread specification are commonly used in automotive, agricultural, heavy equipment, and industrial machinery applications where a standard hex nut alone cannot reliably resist loosening. The 1-14 designation indicates a 1-inch nominal diameter with 14 threads per inch, a fine-thread specification typically found on wheel spindles, steering linkages, bearing retainers, and axle assemblies. Installation requires a cotter pin or safety wire through the castellations after torquing to spec, which is standard practice in these trades.

Key Features

• Castellated design accepts cotter pin or safety wire for positive locking
• 1-14 thread size, right-hand, inch measurement system
• Grade 5 steel construction for reliable tensile strength
• Zinc finish provides basic corrosion protection
• Meets SAE J995 fastener standard
• Sold in a package of 25 units for shop stock convenience

Compatibility

Designed as an OEM-style replacement or service stock castle lock nut for any application requiring a 1-14 right-hand threaded castellated nut conforming to SAE J995.

Installation Notes

Installation is typically performed by automotive, agricultural, or industrial mechanics using an appropriate torque wrench and castellated nut socket. Always torque the nut to the assembly specification before inserting the cotter pin through the castellation and drilled fastener. Bend the cotter pin legs to secure and prevent removal during service. Never substitute a standard hex nut for a castle nut in applications that specifically require positive locking.