S-92991A138 3/8"-16 x 1 1/2" 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 brass material for long-lasting performance in harsh environments
- Precise Class 3A thread fit ensures tight, secure fastening with minimal vibration loosening
- Hex drive design provides excellent torque transmission and easy installation in confined spaces
- Cup point tip creates deep indentation for maximum grip and resistance to rotational forces
- Rockwell B55 hardness delivers optimal balance of strength and machinability for repeated use
- Coarse UNC threading enables quick assembly and disassembly while maintaining holding power
- Headless construction allows for flush mounting in applications where protruding fasteners aren't feasible
Professional Applications & Engineering Value
This brass set screw delivers exceptional engineering value in applications where corrosion resistance and reliable positioning are critical. The combination of Class 3A thread fit and cup point design solves common industrial challenges by providing superior resistance to vibration-induced loosening while creating positive seating in shafts, collars, and pulleys. The hex drive configuration ensures maximum torque application during installation, making it ideal for machinery, automotive components, and precision equipment where space constraints exist. The UNC coarse threads facilitate rapid assembly in production environments, while the Rockwell B55 hardness maintains thread integrity through multiple installation cycles. These industrial set screws are particularly valuable in electrical applications where non-magnetic properties are essential, and in marine environments where brass's natural corrosion resistance prevents degradation.
Specification Summary & Compliance
This precision fastener maintains Class 3A thread tolerances per UNC standards with 3/8"-16 thread size and 1 1/2" length. Manufactured to meet ASME B18.3 specifications for dimensional accuracy and performance. The product is fully compliant with RoHS 3 (2015/863/EU) regulations and REACH (EC 1907/2006) requirements, ensuring environmental safety and regulatory adherence for global industrial applications.
