S-92311A728 1/2"-20 x 5/8" ASME B18.3 Set Screws
Set Screws
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Superior corrosion resistance with 18-8 stainless steel construction, ensuring long-term reliability in harsh environments.
- Exceptional holding power due to Class 3A thread fit, providing tighter tolerances and reduced risk of loosening under vibration.
- High-strength performance with Rockwell B80 hardness, offering excellent durability and resistance to wear.
- Secure and easy installation using the 1/4" hex drive, allowing for high torque application without stripping.
- Effective grip and alignment from the cup tip design, minimizing surface damage and improving component positioning.
- Reliable fine threading with 1/2"-20 UNF, ensuring precise adjustments and strong engagement in tight spaces.
- Compliance with industry standards including ASME B18.3, RoHS 3, and REACH, guaranteeing safety and environmental responsibility.
Professional Applications & Engineering Value
This 18-8 stainless steel set screw is engineered to address common industrial challenges such as component slippage and corrosion-induced failure. Its Class 3A thread fit and fine UNF threading provide superior clamping force in precision assemblies, reducing maintenance needs in machinery, automotive, and aerospace applications. The headless design with a 1/4" hex drive allows for flush mounting in confined spaces, while the cup tip ensures minimal marring on shafts and hubs. Ideal for securing gears, pulleys, and collars, this fastener delivers reliable performance in high-vibration environments, supported by its Rockwell B80 hardness and corrosion-resistant material.
Specification Summary & Compliance
This set screw adheres to Class 3A thread fit for high precision and meets ASME B18.3 specifications. It is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety. The product features a 1/2"-20 UNF fine thread with right-hand direction, a length of 5/8", and a drive size of 1/4" hex, all manufactured to inch system standards for consistent quality.
