S-91410A957 1"-8 x 2" ASME B18.6.2 Set Screws

Key Features & Benefits at a Glance

• Exceptional holding power with coarse UNC threads and Class 2A fit for reliable, vibration-resistant connections in demanding applications.
• Superior durability from Rockwell B80 hardened steel, providing excellent resistance to wear and deformation under heavy loads.
• Easy installation and removal with the external square drive and square head design, allowing high torque application with standard tools.
• Secure component positioning thanks to the cup tip design, which minimizes surface damage while maintaining firm contact.
• Broad industrial compatibility with 1"-8 UNC coarse threading, ensuring easy integration with standard mating components.
• Regulatory peace of mind through compliance with ASME B18.6.2, RoHS 3, and REACH, meeting strict mechanical and environmental standards.
• Optimized for heavy-duty use with a 2" length and robust construction, ideal for permanent or semi-permanent assemblies in machinery and equipment.

Professional Applications & Engineering Value

This 1"-8 UNC Class 2A steel set screw is engineered to address critical challenges in industrial fastening, such as loosening under vibration and insufficient clamping force. The coarse thread spacing and square head design enable quick, high-torque installation, reducing assembly time while ensuring a secure fit. Made from hardened steel with Rockwell B80 hardness, it withstands repetitive stress and environmental exposure, making it ideal for heavy-duty applications in machinery, automotive, and construction. The cup tip provides concentrated pressure without marring surfaces, preserving component integrity. Compliance with ASME B18.6.2 ensures dimensional consistency, while RoHS 3 and REACH adherence supports sustainable operations, delivering long-term reliability for mechanical systems.

Specification Summary & Compliance

This set screw features precise Class 2A thread fit per UNC standards, with a thread size of 1"-8 and coarse spacing for optimal engagement. Dimensions include a 2" length, 1" thread diameter, and square head (25/32" height, 1" width). It meets ASME B18.6.2 manufacturing specifications for consistency and performance. Environmental compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), ensuring it is free from restricted substances for safe industrial use.