S-92949A862 5/16"-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
- Exceptional corrosion resistance with 18-8 stainless steel and passivated finish, ideal for harsh industrial environments.
- Superior thread engagement and vibration resistance thanks to the 5/16"-24 UNF fine thread with Class 3A fit for precise, reliable assemblies.
- High tensile strength of 70,000 psi and Rockwell B55 hardness ensure durability under heavy loads and repeated use.
- Easy installation and high torque capability provided by the 3/16" hex drive and rounded button head design.
- Full threading along the 1-3/4" length offers maximum grip and adjustability in various material thicknesses.
- Compliance with ASME B18.3, RoHS 3, and REACH standards guarantees quality, safety, and environmental responsibility.
- Reliable performance in precision applications due to strict adherence to dimensional and material specifications.
Professional Applications & Engineering Value
This 18-8 stainless steel rounded head screw is engineered to address critical challenges in industrial settings, such as corrosion, vibration loosening, and high-stress demands. The passivated finish enhances its ability to withstand moisture and chemicals, making it suitable for machinery, automotive, and outdoor equipment. With a 5/16"-24 UNF fine thread and Class 3A fit, it ensures tight, secure fastening that resists loosening under dynamic loads. The hex drive and rounded button head facilitate quick installation in confined spaces, while the fully threaded design provides consistent clamping force. Ideal for applications requiring high-strength and long-term reliability, this screw minimizes maintenance and downtime in demanding environments.
Specification Summary & Compliance
This product features precise dimensions including a thread size of 5/16"-24 with Class 3A fit for high accuracy, a length of 1-3/4", and a head diameter of 0.547". It adheres to ASME B18.3 standards for consistent quality and performance. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), it meets environmental and safety regulations, ensuring it is free from hazardous substances and suitable for global industrial use.
