S-92949A607 5/16"-24 x 1 1/2" ASME B18.3 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 construction and passivated finish, ideal for harsh industrial environments.
- Superior holding power and vibration resistance from the fully threaded UNF fine thread design and Class 3A precision fit.
- High mechanical strength with 70,000 psi tensile strength and Rockwell B55 hardness for reliable performance under heavy loads.
- Easy and secure installation using a standard 3/16" hex drive, providing positive torque transmission and reducing tool slippage.
- Streamlined, low-profile button head design minimizes protrusion for applications where clearance is a concern.
- Guaranteed dimensional consistency and interchangeability by conforming to the rigorous ASME B18.3 standard.
- Safe for regulated industries with full compliance to RoHS 3 and REACH environmental directives.
Professional Applications & Engineering Value
This 18-8 stainless steel rounded head hex screw is engineered to solve critical fastening challenges in demanding applications. Its passivated finish significantly enhances corrosion resistance, making it a top choice for machinery, marine equipment, and chemical processing plants where exposure to moisture and corrosive agents is a constant threat. The combination of a UNF fine thread and Class 3A thread fit ensures a tight, secure connection that effectively resists loosening under vibration, a common failure point in industrial assembly. The hex drive and button head profile allow for high torque application in confined spaces, providing engineers with a reliable heavy-duty fastener that maintains integrity and simplifies maintenance.
Specification Summary & Compliance
This screw features a 5/16"-24 UNF fine thread with a precision Class 3A thread fit for superior engagement. It is manufactured to meet the dimensional requirements of ASME B18.3 and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material restrictions are met for global industrial use.
