S-90370A203 M3 ISO 4035, DIN 439B Hex Nuts

Key Features & Benefits at a Glance

• Space-saving thin profile (1.8 mm height) enables use in compact assemblies where standard nuts won't fit
• Reliable coarse thread engagement with Class 6H thread fit ensures vibration resistance and prevents loosening in dynamic applications
• Standardized external hex design provides universal tool compatibility and straightforward installation with common wrenches
• Precision manufacturing to ISO 4035 and DIN 439B guarantees consistent quality and interchangeability in metric systems
• Enhanced durability in harsh environments through compliance with RoHS 3 and REACH environmental regulations
• Optimized M3 x 0.5 mm thread configuration delivers strong holding power while maintaining easy assembly and disassembly
• Reduced assembly weight without compromising strength, ideal for weight-sensitive industrial applications

Professional Applications & Engineering Value

This M3 thin hex nut solves critical space constraints in precision equipment while maintaining full metric thread integrity. The Class 6H thread fit provides superior vibration resistance compared to standard fits, addressing common loosening issues in machinery and electronic enclosures. Manufactured to ISO 4035 and DIN 439B standards, these external hex nuts ensure perfect compatibility with metric coarse thread components across European and international equipment. The right-hand thread design with 0.5 mm pitch offers optimal engagement in automated assembly processes, while the reduced profile (5.5 mm width × 1.8 mm height) makes them ideal for PCB mounting, sensor housings, and compact mechanical systems where every millimeter counts.

Specification Summary & Compliance

This thin hex nut features M3 × 0.5 mm coarse thread spacing with Class 6H thread fit per ISO metric standards. The 5.5 mm width and 1.8 mm height conform to ISO 4035 and DIN 439B dimensional specifications. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental compliance for global industrial applications.