S-90519A823 M22 ASTM A108, DIN 439B, ISO 4035 Hex Nuts

Key Features & Benefits at a Glance

• Left-hand thread design provides secure fastening in applications requiring reverse rotation resistance
• Black-oxide steel construction offers excellent corrosion protection and durability in demanding environments
• Thin profile design (11mm height) enables installation in space-constrained applications without compromising strength
• Class 04 strength rating ensures reliable performance for medium-duty industrial applications
• Coarse metric thread (M22x2.5) allows for quicker assembly and reduced cross-threading risks
• Multi-standard compliance (ASTM A108, DIN 439B, ISO 4035) guarantees international compatibility and quality assurance
• Environmental compliance with RoHS 3 and REACH regulations ensures safe use across regulated industries

Professional Applications & Engineering Value

This left-hand thread hex nut addresses critical engineering challenges in applications where standard right-hand threads would loosen under counter-rotational forces. The black-oxide steel surface treatment provides superior corrosion resistance, extending service life in industrial environments exposed to moisture and chemicals. The thin profile design (32mm width, 11mm height) is particularly valuable in compact assemblies and machinery where space optimization is crucial. Engineered to Class 6H thread fit standards, this metric coarse thread nut ensures precise engagement and reliable performance in vibration-prone equipment, conveyor systems, and rotating machinery requiring left-hand fastening solutions. The external hex drive design facilitates easy installation and removal using standard tools, streamlining maintenance procedures.

Specification Summary & Compliance

This M22x2.5 mm left-hand thread hex nut features Class 6H thread fit tolerance and Class 04 strength rating. Manufactured in compliance with ASTM A108, DIN 439B, and ISO 4035 standards, ensuring dimensional accuracy and performance reliability. The product is RoHS 3 (2015/863/EU) compliant with exemption 6(a) for lead as an alloying element in steel and REACH (EC 1907/2006) compliant as of January 17, 2023, meeting current environmental and safety regulations for industrial applications.