S-90519A884 1"-12 ASTM A108 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
- Left-hand threading provides secure fastening in applications where standard right-hand threads may loosen due to rotational forces
- Thin profile design (35/64" height) saves space and weight while maintaining full thread engagement capability
- Black-oxide steel construction offers enhanced corrosion resistance for extended service life in demanding environments
- Fine UNF thread pattern (1"-12) delivers superior vibration resistance and precise adjustment capabilities
- Grade 2 strength rating ensures reliable performance for general industrial applications
- Class 2B thread fit guarantees consistent, trouble-free installation with standard male threads
- Environmental compliance meets RoHS 3 and REACH requirements for responsible manufacturing standards
Professional Applications & Engineering Value
This left-hand thread hex nut addresses critical engineering challenges in applications where counter-rotational forces are present, preventing unintended loosening of assemblies. The black-oxide steel construction provides essential corrosion protection while maintaining the mechanical properties required for industrial environments. The thin profile design is particularly valuable in space-constrained applications where standard hex nuts would be too bulky, while the fine UNF threading offers superior resistance to vibration-induced loosening. Manufactured to ASTM A108 specifications, this fastener delivers consistent quality and performance for machinery, equipment maintenance, and specialized industrial assemblies requiring reliable left-hand fastening solutions.
Specification Summary & Compliance
This hex nut features 1"-12 UNF left-hand fine threading with Class 2B thread fit for consistent engagement. The dimensional specifications include a width of 1-1/2" and height of 35/64" in the inch system. Manufactured in compliance with ASTM A108 standards and carrying a Grade 2 strength rating, this fastener meets RoHS 3 (2015/863/EU) compliance with exemption 6(a) and is REACH (EC 1907/2006) compliant for environmental responsibility.
