S-91938A145 M20 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
- Superior corrosion resistance with 18-8 stainless steel construction, ensuring long-term reliability in harsh environments
- Enhanced precision fit through Class 6H thread tolerance, providing secure fastening and vibration resistance
- Space-saving thin profile (10mm height) ideal for applications with limited clearance without compromising strength
- Exceptional thread engagement with M20 x 1.5mm extra fine pitch, delivering superior load distribution and clamping force
- Guanteed interchangeability through compliance with DIN 439B and ISO 4035 international standards
- Easy installation and removal with standard external hex drive design compatible with common tools
- Environmental compliance assurance meeting RoHS 3 and REACH regulations for safe industrial use
Professional Applications & Engineering Value
This M20 extra fine thread thin hex nut delivers critical engineering advantages in precision assemblies where space constraints and corrosion resistance are paramount. Manufactured from 18-8 stainless steel, it provides excellent protection against oxidation and chemical exposure in marine, automotive, and food processing equipment. The extra fine 1.5mm thread pitch offers superior vibration resistance and finer adjustment capabilities compared to standard threads, while the thin hex profile (30mm width x 10mm height) enables installation in compact assemblies without sacrificing performance. The external hex drive ensures reliable torque transmission during installation, making it ideal for high-precision applications requiring consistent clamping force and dimensional stability under dynamic loads.
Specification Summary & Compliance
This metric hex nut features M20 x 1.5mm extra fine thread with Class 6H thread fit tolerance, manufactured to DIN 439B and ISO 4035 specifications. The nut dimensions are precisely maintained at 30mm width and 10mm height with right-hand thread direction. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations ensures environmental safety and material traceability throughout the supply chain.
