S-91847A545 5/8"-18 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
- Superior corrosion resistance from 18-8 Stainless Steel construction, ideal for harsh environments and outdoor applications
- Space-saving thin profile (3/8" height) enables use in tight clearance assemblies without compromising strength
- Precision fine threading (5/8"-18 UNF) provides superior vibration resistance and secure fastening in dynamic applications
- Reliable thread engagement with Class 2B fit ensures consistent performance and reduces cross-threading risks
- Easy installation and removal with standard 15/16" external hex drive compatible with common wrench tools
- Environmental compliance meets RoHS 3 and REACH standards for safe use in regulated industries
- Right-hand thread design offers compatibility with standard industrial equipment and fastening systems
Professional Applications & Engineering Value
This 5/8"-18 UNF thin hex nut delivers critical engineering advantages where space constraints and corrosion resistance are primary concerns. The 18-8 Stainless Steel material provides excellent protection against rust and chemical degradation, making these thin hex nuts ideal for marine equipment, food processing machinery, and outdoor structural applications. The UNF fine threads offer superior resistance to vibration loosening compared to coarse thread alternatives, while the Class 2B thread fit ensures smooth assembly and reliable clamping force. The reduced height profile allows engineers to design more compact assemblies without sacrificing thread engagement or fastener integrity, solving common space limitation challenges in precision equipment and machinery maintenance.
Specification Summary & Compliance
This inch-system fastener features 5/8"-18 UNF fine threads with Class 2B thread fit per UNF standards, ensuring precise dimensional accuracy and interchangeability. The nut measures 15/16" across flats with a 3/8" height profile, manufactured from 18-8 Stainless Steel with external hex drive configuration. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, this component meets stringent environmental and safety standards for industrial use across global markets.
