S-90519A811 M3 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 for extended service life
- Class 04 strength rating ensures reliable performance under moderate load conditions
- Class 6H thread fit guarantees precise mating with compatible bolts and smooth assembly
- Multi-standard compliance (ASTM A108, DIN 439B, ISO 4035) ensures global interoperability
- Environmental compliance with RoHS 3 and REACH regulations for sustainable manufacturing
Professional Applications & Engineering Value
This M3 left-hand thread hex nut with 0.5 mm coarse pitch addresses critical engineering needs in specialized industrial applications. The black-oxide steel construction provides superior corrosion protection in demanding environments, while the thin profile design enables installation in space-constrained assemblies. The left-hand threading is particularly valuable in rotating machinery where standard right-hand threads might loosen due to vibrational forces or counter-rotation. These metric thin hex nuts deliver reliable performance in automotive, manufacturing, and equipment applications where reverse-thread security and compact design are essential. The external hex drive ensures easy installation with standard tools, streamlining maintenance and assembly processes.
Specification Summary & Compliance
This precision fastener features M3 x 0.5 mm coarse metric thread with Class 6H thread fit tolerance for optimal mating performance. Manufactured to Class 04 strength rating and compliant with ASTM A108, DIN 439B, and ISO 4035 standards. The product meets RoHS 3 (2015/863/EU) compliance with exemption 6(a) for lead as an alloying element in steel and is REACH (EC 1907/2006) compliant with 233 SVHC as of 01/17/2023. Dimensions include 5.5 mm width and 1.8 mm height for consistent performance across industrial applications.
