S-90519A858 10-32 ASTM A108 Hex Nuts

Key Features & Benefits at a Glance

• Enhanced corrosion resistance from black-oxide steel coating, extending service life in harsh environments
• Secure left-hand thread engagement prevents loosening in counter-rotating applications
• Space-saving thin profile (7/64" height) ideal for confined assembly spaces
• Precise Class 2B thread fit ensures smooth installation and reliable fastening performance
• High-strength Grade 2 construction provides dependable load-bearing capacity
• External hex drive compatibility allows for standard tooling and quick installation
• Full regulatory compliance with RoHS 3 and REACH standards for global market acceptance

Professional Applications & Engineering Value

This 10-32 UNF left-hand thin hex nut delivers critical engineering solutions where reverse-thread applications demand reliability. The black-oxide steel construction provides superior corrosion protection, making it ideal for automotive, machinery, and industrial equipment exposed to moisture and chemicals. The fine UNF threads and Class 2B fit ensure vibration-resistant fastening in high-stress applications, while the thin profile accommodates space-constrained assemblies without compromising strength. Manufactured to ASTM A108 specifications, this fastener maintains consistent dimensional accuracy across production runs, reducing installation issues and improving assembly line efficiency.

Specification Summary & Compliance

This hex nut features 10-32 UNF left-hand fine threads with Class 2B thread fit tolerances, measuring 3/8" across flats and 7/64" in height. Manufactured from Grade 2 steel to ASTM A108 standards, it complies with RoHS 3 (2015/863/EU) with exemption 6(a) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and global market acceptance.