Value Collection A410300 Hex Lock Nut M3 X 0.50 316 Ss Din 985

Product Description

The VALUE COLLECTION A410300 is a metric hex lock nut with a nylon insert locking mechanism, manufactured from Grade 316 A4 stainless steel with no additional finish coating. The nylon insert creates prevailing torque that resists loosening from vibration and dynamic loading without requiring secondary locking hardware. At M3 x 0.50 thread size with a 4.00 mm height and 5.50 mm width across flats, this nut is suited for small-fastener assemblies where corrosion resistance is a priority. It conforms to DIN 985 and features a right-hand thread direction. Each package contains 25 pieces.

This nut is used in applications where Grade 316 stainless steel is specified for elevated corrosion resistance, including marine environments, chemical processing, food service equipment, pool and spa mechanical assemblies, and outdoor installations exposed to moisture or salt air. The M3 thread size makes it a fit for light structural assemblies, instrumentation panels, and small-component mounting. Electricians, plumbers, HVAC technicians, and pool service professionals working with metric stainless fastener systems will find this nut appropriate for corrosion-sensitive installations.

Key Features

• Grade 316 A4 stainless steel construction for superior corrosion resistance compared to Grade 304
• Nylon insert provides prevailing torque locking without additional hardware
• Right-hand thread direction, M3 x 0.50 pitch
• Conforms to DIN 985 standard
• Uncoated finish — no galvanic risk from plating in stainless assemblies
• Sold in a pack of 25 pieces

Compatibility

Designed for use with M3 x 0.50 metric threaded fasteners in assemblies requiring DIN 985 compliant prevailing-torque hex lock nuts in Grade 316 A4 stainless steel.

Installation Notes

Install with a 5.50 mm wrench or nut driver. Power down or de-energize any assembly before adding or replacing fasteners on live equipment. Avoid mixing stainless steel fasteners with carbon steel components to reduce the risk of galvanic corrosion. The nylon insert is single-use by design and nuts should not be reused after full removal in critical applications.