S-90519A819 M16 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
- Corrosion-resistant black-oxide steel construction ensures extended service life in harsh industrial environments
- Left-hand thread design provides secure fastening in applications requiring reverse-threading safety
- Class 04 strength grade delivers reliable performance for medium-duty mechanical assemblies
- Thin profile design (8mm height) saves space while maintaining full thread engagement capability
- Precision Class 6H thread fit guarantees consistent mating with compatible bolts and studs
- Standard-compliant manufacturing (ASTM A108, DIN 439B, ISO 4035) ensures interchangeability and quality consistency
- Regulatory compliance with RoHS 3 and REACH supports environmental and safety requirements
Professional Applications & Engineering Value
This M16 left-hand thread hex nut addresses critical reverse-threading requirements in rotating machinery, conveyor systems, and safety-critical assemblies where standard right-hand threads could loosen under operational forces. The black-oxide steel surface treatment provides superior corrosion resistance compared to plain steel, while the thin profile design enables installation in space-constrained applications without compromising strength. The coarse 2mm pitch thread ensures quick assembly and disassembly, making it ideal for maintenance-intensive industrial equipment. Engineered to ASTM A108, DIN 439B, and ISO 4035 standards, this fastener delivers consistent performance across global manufacturing specifications and replacement part requirements.
Specification Summary & Compliance
This metric hex nut features M16×2mm left-hand coarse threads with Class 6H thread fit tolerance, 24mm width across flats, and 8mm height. Manufactured to Class 04 strength grade and compliant with ASTM A108, DIN 439B, and ISO 4035 specifications. Meets RoHS 3 (2015/863/EU) compliance with exemption 6(a) for lead as steel alloying element and REACH (EC 1907/2006) regulations updated January 17, 2023.
