Value Collection NL5XX01200-050BX Hex Lock Nut M12x1.75

Product Description

The VALUE COLLECTION NL5XX01200-050BX is a metric hex lock nut with a nylon insert, manufactured from Grade 316 A4 stainless steel with a bright, uncoated finish. It features a right-hand thread in M12x1.75 pitch and conforms to DIN 985 standards. The nylon insert creates a prevailing-torque locking action that resists loosening caused by vibration and dynamic loads. At 12.00 mm in height with a 19.00 mm width across flats, this fastener fits standard M12 hex tooling. It is suited for marine, chemical processing, food service, and other corrosive environments where 316-grade stainless is specified.

This hex lock nut is used in mechanical assemblies, structural connections, and equipment installations where vibration resistance and corrosion resistance are both required. The DIN 985 standard makes it a direct fit in metric fastener applications across industrial maintenance, marine hardware, plumbing equipment mounts, and HVAC equipment frames. Installers working in wet or salt-air environments commonly specify Grade 316 A4 stainless hardware to meet corrosion resistance requirements.

Key Features

• Nylon insert locking style resists loosening under vibration per DIN 985
• Grade 316 A4 stainless steel construction for superior corrosion resistance in marine and chemical environments
• M12x1.75 right-hand thread for standard metric compatibility
• Bright, uncoated finish — no plating to degrade in harsh exposure conditions
• 19.00 mm width across flats fits standard M12 hex wrenches and sockets
• 12.00 mm nut height provides adequate thread engagement for full load capacity

Compatibility

Designed for use on M12x1.75 metric threaded fastener assemblies conforming to DIN 985. Suitable as a replacement or addition wherever a DIN 985 nylon insert hex lock nut in Grade 316 A4 stainless steel is specified.

Installation Notes

Install using an appropriately sized 19 mm hex wrench or socket. Nylon insert lock nuts are intended for single-use only — once the nylon insert has been fully seated and removed, the locking effectiveness is reduced and replacement is recommended. Ensure mating threads are clean and free of burrs before installation. This fastener should be installed by a qualified mechanic or tradesperson following applicable torque guidelines for M12 stainless fasteners.