S-92695A659 5/16"-18 x 7/8" ASME B18.3, ASTM F912 Set Screws

Key Features & Benefits at a Glance

• Exceptional holding power with Class 3A thread fit ensuring tight, secure fastening in demanding applications
• Superior corrosion resistance from Black-Oxide Alloy Steel construction, extending service life in harsh environments
• Enhanced durability with Rockwell C45 hardness, providing reliable performance under high stress and vibration
• Secure anti-loosening grip thanks to the 90° cone point design that digs into surfaces for permanent positioning
• Easy installation and removal with 5/32" hex drive, allowing quick maintenance without specialized tools
• Broad compatibility with UNC coarse threads and right-hand direction, fitting standard industrial components
• Regulatory peace of mind through compliance with ASME B18.3, RoHS 3, and REACH standards

Professional Applications & Engineering Value

This 5/16"-18 UNC set screw delivers critical engineering value in applications where vibration resistance and permanent alignment are paramount. The Black-Oxide Alloy Steel material, combined with a Rockwell C45 hardness, prevents wear and seizing in high-torque scenarios like machinery shafts, pulleys, and gear assemblies. Its headless design and 90° cone point concentrate force into a small area, creating a reliable bite that resists rotational forces. Ideal for industrial fastening in manufacturing, automotive, and heavy equipment, this hex drive set screw solves common loosening issues while meeting strict ASME B18.3 specifications for dimensional consistency.

Specification Summary & Compliance

This set screw features a Class 3A thread fit for precise engagement, with UNC coarse threads (5/16"-18) and a 7/8" length. Manufacturing adheres to ASME B18.3 standards, ensuring dimensional accuracy and performance reliability. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, confirming it is free of hazardous substances and suitable for global industrial use.