S-98886A813 1/4"-20 Hex Nuts
Hex Nuts
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Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Material & Strength Parameters
Temperature & Environment Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Extreme temperature resilience for reliable performance from -50°F to 550°F in demanding thermal cycles
- Superior chemical resistance with PEEK material, preventing degradation in harsh industrial environments
- Precise Class 2B thread fit ensures smooth assembly and secure fastening with standard UNC 1/4"-20 bolts
- Robust external hex drive design allows for easy installation using common wrenches in tight spaces
- Compliance with RoHS 3 and REACH regulations guarantees environmental safety and global supply chain acceptance
- Coarse thread spacing provides quicker installation and reduced cross-threading risks in high-vibration applications
- Standard inch dimensions (7/16" width, 3/16" height) ensure compatibility with existing industrial equipment and replacements
Professional Applications & Engineering Value
This PEEK plastic hex nut delivers critical solutions for industries where metal fasteners fail due to corrosion, electrical insulation requirements, or thermal expansion mismatches. Its high-temperature rating up to 550°F makes it ideal for aerospace, automotive, and chemical processing equipment, maintaining structural integrity where thermal cycling is constant. The UNC coarse threads and Class 2B fit provide reliable engagement in high-vibration settings, while the external hex drive facilitates maintenance in confined assemblies. Engineers specify this nut to eliminate galvanic corrosion in mixed-material designs and to meet strict RoHS and REACH compliance in regulated markets, ensuring long-term durability without maintenance overhead.
Specification Summary & Compliance
Manufactured to UNC 1/4"-20 coarse thread specifications with Class 2B thread fit for consistent dimensional accuracy. The standard external hex drive profile (7/16" width, 3/16" height) conforms to industrial inch measurement systems. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, including SVHC oversight, ensures adherence to global environmental and safety standards for industrial components.
