S-92891A200 5/16"-18 Square Nuts

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 316 Stainless Steel, ideal for harsh industrial and marine environments where durability is critical.
• Reliable coarse thread engagement using UNC 5/16"-18 threads for faster assembly and reduced cross-threading risks in high-vibration applications.
• Precise Class 2B thread fit ensures smooth installation and secure fastening, minimizing the chance of loosening under stress.
• Easy installation and removal with an external square drive design that provides superior torque transmission using standard tools.
• Compliance with RoHS 3 and REACH standards guarantees environmental safety and regulatory acceptance for global industrial supply chains.
• Compact and robust design with 9/16" width and 7/32" height, offering space-saving benefits without sacrificing strength in tight assemblies.
• Right-hand thread direction facilitates standard clockwise tightening, ensuring compatibility with common fastening practices and equipment.

Professional Applications & Engineering Value

This 5/16"-18 UNC square nut is engineered to address common industrial challenges, such as corrosion-induced failure and assembly inefficiencies. Constructed from 316 Stainless Steel, it provides superior resistance to chemicals, saltwater, and extreme temperatures, making it a top choice for marine, chemical processing, and outdoor equipment. The coarse thread design and Class 2B thread fit enable quick, secure fastening even in high-vibration settings, reducing downtime and maintenance costs. Its external square drive allows for high-torque applications with standard wrenches, enhancing workflow efficiency. By integrating RoHS and REACH compliance, this nut supports sustainable and safe operations across various sectors, from heavy machinery to structural frameworks.

Specification Summary & Compliance

This square nut adheres to UNC coarse thread standards with a 5/16"-18 thread size and Class 2B thread fit for precise dimensional accuracy. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free from hazardous substances. Manufactured with a right-hand thread direction and external square drive, it is built to industry specifications for reliable performance in demanding applications.