S-92695A645 1/4"-20 x 7/16" ASME B18.3, ASTM F912 Set Screws

Key Features & Benefits at a Glance

• Superior holding power with a 90° cone point that bites deeply into materials for maximum resistance against loosening under vibration and torque.
• Exceptional durability and corrosion resistance provided by the black-oxide finish on alloy steel, extending service life in demanding environments.
• High-strength performance backed by a Rockwell C45 hardness, ensuring the screw maintains its form and function under significant mechanical stress.
• Precise and reliable fastening with a Class 3A thread fit, offering tighter tolerances for secure assembly in critical applications.
• Easy installation and removal using a standard 1/8" hex drive, allowing for efficient maintenance and adjustments with common tools.
• Versatile coarse UNC thread design enables quick assembly and provides robust performance in a wide range of materials.
• Headless, low-profile design ensures a flush fit, ideal for applications where space is limited and a smooth surface is required.

Professional Applications & Engineering Value

This 1/4"-20 UNC set screw is engineered to solve critical fastening challenges in industrial and mechanical systems. The black-oxide alloy steel construction provides excellent resistance to rust and wear, making it suitable for harsh operational environments. Its 90° cone point concentrates force to prevent slippage, ensuring components like gears, pulleys, and collars remain securely locked on shafts. The Class 3A thread fit and coarse thread spacing deliver high clamping force and rapid assembly, reducing downtime in production lines. Ideal for machinery, automotive, and aerospace applications, this screw offers reliable performance where vibration resistance and precise alignment are paramount, enhancing overall equipment longevity and safety.

Specification Summary & Compliance

This set screw adheres to strict dimensional and performance standards, including a Class 3A thread fit for precision and UNC coarse threads per common industrial requirements. It is manufactured in compliance with ASME B18.3 specifications, ensuring consistent quality and interchangeability. The product is also RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting environmental and safety regulations for hazardous substances, making it a responsible choice for global supply chains.