S-90519A833 M8 ASTM A108, DIN 439B, ISO 4035 Hex Nuts

Key Features & Benefits at a Glance

• Enhanced corrosion resistance with black-oxide steel coating, ideal for humid or demanding industrial environments
• Space-saving thin profile (4mm height) allows use in compact assemblies without compromising strength
• Reliable left-hand thread design prevents unintentional loosening in counter-rotating machinery applications
• Precision Class 6H thread fit ensures smooth engagement and consistent clamping force in fine-thread assemblies
• Multi-standard compliance (ASTM A108, DIN 439B, ISO 4035) guarantees global interoperability and quality assurance
• Class 04 mechanical strength provides dependable performance for medium-duty fastening requirements
• Regulatory compliance with RoHS 3 and REACH standards meets environmental and safety mandates for industrial components

Professional Applications & Engineering Value

This M8x1mm thin hex nut with left-hand thread addresses critical reverse-rotation scenarios in machinery, conveyor systems, and specialized equipment where standard right-hand threads would naturally loosen. The black-oxide steel construction provides superior corrosion protection without the dimensional changes associated with plating, maintaining precise Class 6H thread fit tolerance. Its thin hex nut profile (4mm height) solves spatial constraints in compact assemblies while the fine thread pitch delivers enhanced vibration resistance. Engineered to ASTM A108, DIN 439B, and ISO 4035 standards, this component ensures reliable performance across global manufacturing and maintenance operations requiring metric left-hand fastening solutions.

Specification Summary & Compliance

This metric thin hex nut features M8x1mm left-hand fine threads with Class 6H thread fit tolerance per ISO standards. Manufacturing complies with ASTM A108 material specifications and dimensional requirements of DIN 439B and ISO 4035 for thin hex nuts. The component meets RoHS 3 (2015/863/EU) compliance with exemption 6(a) for lead as steel alloying element and is REACH (EC 1907/2006) compliant per the latest SVHC list. Mechanical properties conform to Class 04 strength rating with external hex drive configuration measuring 13mm across flats and 4mm in height.