S-90519A843 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
- Left-hand thread design provides secure fastening in applications requiring reverse rotation resistance
- Thin profile construction saves space and weight while maintaining full functionality
- Black-oxide steel material offers excellent corrosion resistance and durability in harsh environments
- Fine thread spacing (2mm pitch) ensures precise adjustment and vibration-resistant locking
- Class 04 strength rating delivers reliable performance for medium-duty industrial applications
- Multi-standard compliance guarantees international compatibility and quality assurance
- RoHS 3 and REACH compliance meets environmental regulations for global manufacturing
Professional Applications & Engineering Value
This M27x2mm left-hand thread hex nut solves critical engineering challenges in applications where conventional right-hand threads would loosen under counter-rotational forces. The black-oxide steel construction provides superior corrosion protection without compromising the Class 04 strength rating, making it ideal for machinery, automotive, and industrial equipment subjected to vibrational stress. The thin profile design (13.5mm height) enables installation in confined spaces where standard nuts cannot fit, while the fine metric thread spacing ensures precise tension control and prevents accidental loosening. Engineered to meet ASTM A108, DIN 439B, and ISO 4035 standards, this nut delivers consistent performance in demanding left-hand thread applications across global manufacturing environments.
Specification Summary & Compliance
This metric hex nut features M27x2mm left-hand threads with Class 6H thread fit tolerance for precise engagement. The 41mm width and 13.5mm height dimensions conform to thin profile specifications per DIN 439B and ISO 4035 standards. Manufactured according to ASTM A108 material specifications with external hex drive configuration. Fully compliant with RoHS 3 (2015/863/EU) with exemption 6(a) for lead as steel alloying element and REACH (EC 1907/2006) regulations regarding substance restrictions.
