S-90083A255 1"-8 Hex Nuts

Key Features & Benefits at a Glance

• Left-hand thread design provides secure fastening in applications where standard right-hand threads would loosen due to rotational forces
• Grade 2 steel construction delivers reliable strength and durability for general industrial applications
• Thin profile design saves space and weight while maintaining full thread engagement
• UNC coarse threading enables faster assembly and reduced cross-threading risk in demanding environments
• Class 2B thread fit ensures consistent performance and reliable mating with Class 2A external threads
• External hex drive allows for standard tool compatibility and straightforward installation
• RoHS 3 and REACH compliance guarantees environmental safety and regulatory adherence for global industrial use

Professional Applications & Engineering Value

This left-hand thread hex nut addresses critical engineering challenges in applications subject to counter-clockwise rotational forces, where standard fasteners would progressively loosen. The Grade 2 steel construction provides optimal strength-to-weight ratio for general industrial use, while the thin profile design is particularly valuable in space-constrained assemblies. The 1"-8 UNC coarse thread configuration ensures rapid installation and superior resistance to vibration-induced loosening in machinery, conveyor systems, and rotating equipment. The external hex drive compatibility with standard wrenches simplifies maintenance procedures, reducing downtime in production environments. These nuts are engineered to maintain integrity under continuous operational stress while meeting international environmental standards.

Specification Summary & Compliance

This hex nut features precise 1"-8 UNC left-hand threads with Class 2B thread fit per ASME B1.1 standards, ensuring proper engagement with mating components. Manufacturing adheres to Grade 2 mechanical properties for consistent performance. The nut dimensions include 1-1/2" width across flats and 35/64" height for the thin profile configuration. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations confirms environmental safety and substance restriction adherence for industrial applications worldwide.