S-90519A846 M30 ASTM A108, DIN 439B, ISO 4035 Hex Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-oxide steel finish, extending service life in harsh industrial environments
• Precise left-hand thread engagement with Class 6H fit ensures reliable performance in reverse-rotation applications
• Space-saving thin profile (15mm height) provides installation flexibility where clearance is limited
• Exceptional dimensional consistency meeting ASTM A108, DIN 439B and ISO 4035 standards for interchangeability
• Enhanced vibration resistance through extra fine 1.5mm pitch threads for critical mechanical assemblies
• Regulatory compliance assurance with RoHS 3 and REACH certifications for global supply chain integration
• Optimized torque transmission via external hex drive design compatible with standard wrenching tools

Professional Applications & Engineering Value

This left-hand metric hex nut addresses critical engineering challenges in rotating machinery and specialized equipment where reverse-direction threading is essential for safety and functionality. The black-oxide steel construction provides superior corrosion protection without compromising the Class 04 strength rating, making it ideal for automotive, manufacturing, and heavy equipment applications. The extra fine thread pitch (1.5mm) delivers enhanced clamping force distribution and vibration resistance in high-stress assemblies, while the thin profile enables installation in confined spaces without sacrificing performance. Manufactured to ASTM A108, DIN 439B, and ISO 4035 specifications, this nut ensures dimensional precision and reliability in demanding industrial environments where component failure is not an option.

Specification Summary & Compliance

This M30 x 1.5mm extra fine thread hex nut maintains precise Class 6H thread fit tolerances according to metric standards. The thin profile design (46mm width × 15mm height) conforms to DIN 439B and ISO 4035 dimensional requirements, while material properties meet ASTM A108 specifications. The product is fully compliant with RoHS 3 (2015/863/EU) with exemption 6(a) for lead as an alloying element in steel and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and global market acceptance.