S-92949A873 3/8"-24 x 1 3/4" ASME B18.3, ASTM F879 Stainless Steel Button Head Hex-Drive Screws
Stainless Steel Button Head Hex-Drive Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior corrosion resistance from 18-8 stainless steel and passivated finish, ensuring long-term reliability in harsh environments.
- High-strength performance with 70,000 psi tensile strength and Rockwell B55 hardness for demanding industrial applications.
- Precise, secure fastening thanks to Class 3A thread fit and UNF fine threads, reducing the risk of loosening under vibration.
- Easy installation and removal with a 7/32" hex drive, providing a firm grip and minimizing tool slippage.
- Full-thread engagement along the 1 3/4" length for maximum holding power and uniform stress distribution.
- Compliance with industry standards including ASME B18.3, ensuring consistent quality and interchangeability.
- Environmentally responsible manufacturing with RoHS 3 and REACH compliance, meeting global regulatory requirements.
Professional Applications & Engineering Value
This 3/8"-24 UNF rounded head screw is engineered to address critical challenges in industrial assembly, where vibration resistance, corrosion prevention, and high clamp load are paramount. The 18-8 stainless steel construction, combined with a passivated finish, provides exceptional durability against moisture, chemicals, and temperature fluctuations. The fine thread (UNF) and Class 3A fit ensure tight tolerances and superior fatigue resistance, making it ideal for precision machinery, automotive components, and structural frameworks. Its hex drive design allows for high-torque application without cam-out, reducing assembly time and improving workplace safety. These features make it a reliable choice for heavy-duty fastening in OEM and MRO operations.
Specification Summary & Compliance
This screw adheres to Class 3A thread fit for high precision and features a UNF 3/8"-24 fine thread with full threading along the 1 3/4" length. Manufactured in compliance with ASME B18.3 specifications, it ensures dimensional accuracy and performance consistency. The product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, confirming its adherence to environmental and safety regulations without hazardous substances.
