S-91375A914 1"-8 x 2 1/2" ASME B18.3, ASTM F912 Set Screws

Key Features & Benefits at a Glance

• Exceptional holding power with Class 3A thread fit for secure, vibration-resistant fastening in demanding applications.
• Superior durability and wear resistance thanks to Alloy Steel construction and Rockwell C45 hardness.
• High torque capability and easy installation provided by the 9/16" Hex Drive, preventing tool slippage.
• Reliable grip and minimal surface damage from the Cup Point tip design, ideal for permanent positioning.
• Robust performance in coarse threading with 1"-8 UNC threads for quick assembly and strong engagement.
• Headless design for space-saving installations, allowing flush mounting in confined areas.
• Compliance with industry standards including ASME B18.3, ensuring consistent quality and reliability.

Professional Applications & Engineering Value

This alloy steel set screw is engineered to solve critical industrial challenges, such as component slippage and vibration-induced loosening in heavy machinery. The 1"-8 UNC coarse thread and Class 3A fit provide superior engagement and holding strength, reducing maintenance needs in industrial applications like motor shafts, gears, and pulleys. Made from high-strength alloy steel and hardened to Rockwell C45, it resists deformation under high stress. The headless design and cup point tip ensure a firm, flush fit, making it ideal for permanent assemblies where space is limited and reliability is paramount.

Specification Summary & Compliance

This set screw adheres to precise inch system dimensions, including a 2-1/2" length and 1"-8 UNC coarse thread with Class 3A fit for tight tolerances. It meets ASME B18.3 specifications for consistent performance and is compliant with RoHS 3 and REACH regulations, ensuring environmental safety and material reliability in global industrial markets.