S-93031A166 3/8"-16 Hex Nuts
Hex Nuts
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Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Material & Strength Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Exceptional corrosion resistance in harsh environments thanks to 316 stainless steel construction
- Reliable left-hand thread engagement for specialized applications requiring reverse-threading security
- Space-saving thin profile (7/32" height) ideal for tight clearance assemblies without sacrificing strength
- Quick installation and removal with standard external hex drive and coarse UNC threading
- Precise Class 2B thread fit ensures consistent performance and reduces cross-threading risks
- Compliance with RoHS 3 and REACH standards for safe use in regulated industrial sectors
- Durable inch-system compatibility with 3/8"-16 UNC specification for broad equipment interoperability
Professional Applications & Engineering Value
This left-hand thread hex nut provides critical reverse-threading functionality where standard right-hand threads would loosen under counter-clockwise rotational forces. Manufactured from 316 stainless steel, it delivers superior corrosion resistance against chlorides and chemicals, making it ideal for marine equipment, food processing machinery, and chemical plant applications. The thin hex nut profile addresses space constraints in compact assemblies while maintaining full UNC coarse thread engagement. The Class 2B thread fit offers optimal clearance for rapid assembly in high-volume production environments, reducing installation time without compromising joint integrity. These engineering features make it particularly valuable for maintenance operations on rotating equipment where vibration-induced loosening is a concern.
Specification Summary & Compliance
This fastener features 3/8"-16 UNC coarse threading with Class 2B thread fit per ASME B1.1 standards, ensuring dimensional accuracy and interchangeability. The nut measures 9/16" across flats with a 7/32" height, conforming to thin hex nut profiles. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing restriction of hazardous substances for industrial safety and environmental protection.
