Value Collection HN4XX03000-005BX Hex Nut M30 X 3.50

Product Description

The VALUE COLLECTION HN4XX03000-005BX is a heavy-duty hex nut manufactured from Grade 316 austenitic stainless steel meeting the A4 material classification. It features a standard M30 x 3.50 metric thread profile with right-hand thread direction and conforms to DIN 934 dimensional standards. With a width across flats of 46 millimeters and a height of 24 millimeters, this nut is sized for large-diameter fastening applications where corrosion resistance and mechanical strength are critical requirements. The bright, uncoated finish preserves the natural surface properties of the 316 alloy. Plumbers, pipefitters, HVAC technicians, and mechanical contractors working with corrosion-prone or high-moisture environments commonly specify this grade of fastener.

This hex nut is well suited for use in marine, coastal, chemical processing, and industrial mechanical assemblies where exposure to moisture, salt, or mild chemicals demands a corrosion-resistant fastener. The M30 thread size positions it in heavy structural and equipment-mounting applications. Grade 316 stainless steel provides improved resistance to chloride environments compared to Grade 304, making this nut a common choice in process piping, pump mounting, heat exchanger assemblies, and similar trade installations.

Key Features

• Grade 316 austenitic stainless steel construction, A4 classification, for superior corrosion resistance
• M30 x 3.50 metric right-hand thread conforms to DIN 934 fastener standard
• 46 millimeters across flats for use with standard heavy-duty wrenching tools
• 24 millimeter height provides full thread engagement depth for large-diameter bolts
• Bright, uncoated finish — no plating or coating that could compromise corrosion performance
• Does not meet military specifications — suited for commercial and industrial applications

Compatibility

Designed as an OEM-style replacement or direct-use hex nut for M30 x 3.50 metric threaded bolt and stud assemblies conforming to DIN 934 standards in commercial, industrial, and mechanical trade applications.

Installation Notes

Installation should be performed by a qualified mechanic, pipefitter, or millwright familiar with metric fastener standards and torque requirements for the specific assembly. Always verify thread engagement depth and confirm the mating bolt is also Grade 316 or a compatible stainless alloy to prevent galvanic incompatibility. Use calibrated torque equipment appropriate for M30 fasteners and follow the equipment manufacturer or structural specification for final torque values. Inspect threads for damage or contamination before assembly.