S-91375A682 7/16"-20 x 1/2" ASME B18.3, ASTM F912 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 black-oxide coating, extending service life in harsh industrial environments
- Exceptional thread precision with Class 3A fit ensuring reliable, vibration-resistant fastening in critical assemblies
- High-strength performance from alloy steel with Rockwell C45 hardness for heavy-duty applications
- Secure installation through hex drive design providing maximum torque transfer without head protrusion
- Enhanced grip capability with cup tip design creating positive seating on shaft surfaces
- Industry-standard compliance meeting ASME B18.3 specifications for guaranteed interchangeability
- Environmental responsibility with RoHS 3 and REACH compliance for global manufacturing applications
Professional Applications & Engineering Value
This black-oxide alloy steel set screw delivers critical engineering solutions for precision machinery and industrial equipment. The Class 3A thread fit with 7/16"-20 UNF fine threads provides exceptional clamping force retention in high-vibration environments, preventing loosening in motors, gears, and power transmission systems. The headless design with hex drive allows flush mounting in confined spaces while maintaining full torque capability. The cup tip creates concentrated contact pressure for secure shaft positioning in pulleys, collars, and couplings. Manufactured to Rockwell C45 hardness, this fastener withstands repeated adjustments without thread deformation, making it ideal for maintenance-intensive applications across automotive, aerospace, and heavy machinery sectors.
Specification Summary & Compliance
This set screw features 7/16"-20 UNF fine threads with Class 3A thread fit for precision tolerance, manufactured in accordance with ASME B18.3 specifications. The 1/2" length and 0.438" thread diameter provide standardized dimensions for reliable interchangeability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring suitability for global industrial supply chains.
