S-90519A844 M27 ASTM A108, DIN 439B, ISO 4035 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 with black-oxide steel construction, ideal for humid or demanding industrial environments.
- Secure, vibration-resistant fastening due to the extra fine left-hand thread pitch, preventing unintentional loosening in high-stress applications.
- Precise, reliable thread engagement ensured by the Class 6H thread fit, minimizing the risk of cross-threading and assembly errors.
- Space-saving design with a thin profile, allowing for installation in compact assemblies where standard nuts won't fit.
- High-strength performance meeting Class 04 requirements, providing dependable load-bearing capacity for structural and mechanical uses.
- Broad industry compatibility by conforming to ASTM A108, DIN 439B, and ISO 4035 standards, ensuring interchangeability and quality.
- Safe for regulated applications with full compliance to RoHS 3 and REACH, meeting strict environmental and safety standards.
Professional Applications & Engineering Value
This M27 left-hand thin hex nut is engineered to solve critical challenges in machinery, automotive, and heavy equipment sectors where reverse-thread mechanisms are essential. The black-oxide steel offers superior protection against rust and wear, extending service life in corrosive settings. Its extra fine thread spacing and Class 6H thread fit provide a tight, precise connection that resists vibration-induced loosening—common in rotating assemblies or left-hand thread applications. The thin hex nut profile allows for use in confined spaces without compromising strength, making it a reliable choice for metric fastener systems requiring durability and compliance with international standards like ASTM A108 and ISO 4035.
Specification Summary & Compliance
This nut features a Class 6H thread fit for high precision, with dimensions of 41mm width and 13.5mm height. It adheres to ASTM A108, DIN 439B, and ISO 4035 specifications, ensuring consistent manufacturing quality. The product is fully compliant with RoHS 3 (2015/863/EU) under exemption 6(a) and REACH (EC 1907/2006) as of January 17, 2023, meeting environmental and safety regulations for industrial use.
