S-94450A257 3/8"-16 Hex Nuts

Key Features & Benefits at a Glance

• Corrosion-resistant 18-8 stainless steel construction ensures long-term durability in harsh environments, reducing maintenance costs and replacement frequency
• Left-hand thread design provides secure fastening in specialized applications where standard right-hand threads would loosen under counter-clockwise rotation
• Thin profile (7/32" height) offers space-saving advantages in compact assemblies while maintaining full thread engagement
• Class 2B thread fit delivers reliable, consistent engagement with mating components while allowing for easier assembly than precision fits
• Coarse UNC thread spacing enables quicker installation and reduced cross-threading risk compared to fine thread alternatives
• External hex drive design provides superior torque transmission and tool accessibility for efficient installation and removal
• Full regulatory compliance with RoHS 3 and REACH standards ensures environmental responsibility and global market acceptance

Professional Applications & Engineering Value

This left hand thin hex nut addresses critical engineering challenges in applications requiring reverse-thread security. The 18-8 stainless steel composition provides excellent corrosion resistance for outdoor equipment, marine components, and industrial machinery exposed to moisture and chemicals. The thin profile design is particularly valuable in space-constrained assemblies where standard hex nuts would be too bulky, while the coarse UNC thread spacing ensures reliable performance in high-vibration environments common in automotive, aerospace, and manufacturing equipment. The left-hand thread direction serves essential safety functions in rotating systems where standard right-hand threads might loosen during operation, making it ideal for applications such as grinding wheels, mixer blades, and other counter-rotating mechanisms.

Specification Summary & Compliance

This 3/8"-16 UNC hex nut features precise Class 2B thread fit tolerances according to inch system standards, ensuring compatibility with corresponding male threads. The external hex drive measures 9/16" across flats with a reduced height profile of 7/32". Manufacturing complies with industry standards for left-hand thread fasteners and carries full compliance declarations for RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming adherence to environmental and substance restriction requirements for global industrial applications.