S-90291A877 1/2"-13 ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments.
• Exceptional holding power ensured by Class 3A thread fit for tight, secure fastening in critical assemblies.
• Non-marring and vibration-resistant green nylon 6/6 plastic tip protects component surfaces and prevents loosening.
• Wide temperature tolerance with nylon tip operating from -50° to 250°F, suitable for varied thermal conditions.
• High-strength durability from Rockwell B80 hardness, providing reliable performance under mechanical stress.
• Easy installation and removal with 1/4" hex drive, allowing for efficient maintenance with standard tools.
• Compliance with industry standards including ASME B18.3, RoHS 3, and REACH, ensuring safety and regulatory adherence.

Professional Applications & Engineering Value

This 1/2"-13 UNC hex drive set screw is engineered to address common industrial challenges such as component slippage and surface damage. The 18-8 stainless steel material offers excellent resistance to rust and corrosion, making it ideal for applications in machinery, automotive, and outdoor equipment where exposure to moisture is a concern. The coarse UNC thread and Class 3A fit provide a precise, tight grip that minimizes the risk of loosening under vibration, while the nylon tip ensures mar-free contact on sensitive parts. Its headless design allows for flush mounting in confined spaces, enhancing versatility in assembly lines and precision engineering projects where reliability and ease of use are paramount.

Specification Summary & Compliance

This set screw features a 1/2"-13 UNC coarse thread with Class 3A thread fit for high precision and strength. It complies with ASME B18.3 manufacturing standards and is RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, ensuring environmental safety and regulatory adherence in industrial applications.