S-93031A171 1/2"-13 Hex Nuts

Key Features & Benefits at a Glance

• Exceptional corrosion resistance in harsh environments thanks to 316 stainless steel construction
• Space-saving thin profile design allows for installation in tight or weight-sensitive applications
• Reliable left-hand threading provides secure fastening for specialized machinery and rotating equipment
• Precise Class 2B thread fit ensures smooth assembly and consistent clamping force
• Robust UNC coarse thread offers superior resistance to vibration loosening and cross-threading
• Easy installation and removal with standard external hex drive compatible with common tools
• Full regulatory compliance with RoHS 3 and REACH standards for safe use in regulated industries

Professional Applications & Engineering Value

This left-hand thread hex nut is engineered for demanding applications where reverse rotation or counter-clockwise tightening is required, such as in specific motor shafts, mixer blades, and certain hydraulic systems. The 316 stainless steel material provides superior corrosion resistance against chlorides and acidic environments, making it ideal for marine, chemical processing, and food industry applications. The thin profile design reduces weight and bulk while maintaining strength, solving space constraint challenges in compact assemblies. Combined with the UNC coarse thread and external hex drive, this nut delivers reliable performance in high-vibration environments where standard fasteners might fail.

Specification Summary & Compliance

This hex nut features 1/2"-13 UNC left-hand coarse threads with Class 2B thread fit tolerance, ensuring precise engagement with mating components. The external hex measures 3/4" across flats with a 5/16" height profile. Manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, this fastener meets the latest environmental and safety standards for industrial use.