S-92949A196 8-32 x 5/8" 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
- Superior corrosion resistance with 18-8 Stainless Steel material and passivated finish, ideal for harsh environments
- Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B55 hardness for reliable load-bearing performance
- Precise thread engagement with Class 3A thread fit and UNC coarse threading, ensuring secure fastening and vibration resistance
- Easy installation and removal using a standard 3/32" hex drive, reducing assembly time and tool wear
- Full threading along the 5/8" length provides maximum grip and uniform stress distribution in applications
- Rounded button head design offers a low-profile, finished appearance while minimizing snagging risks
- Compliance with industry standards including ASME B18.3, RoHS, and REACH, ensuring safety and environmental responsibility
Professional Applications & Engineering Value
These 8-32 UNC rounded head screws are engineered to address critical industrial fastening challenges where corrosion resistance, high tensile strength, and precision threading are paramount. The 18-8 stainless steel construction, combined with a passivated finish, provides excellent protection against oxidation and chemical exposure in demanding environments such as machinery, electronics, and outdoor equipment. The fully threaded design and Class 3A thread fit ensure consistent clamping force and reduce the risk of loosening under dynamic loads. With a hex drive for secure tool engagement and a rounded button head for smooth surfaces, these screws are ideal for applications requiring both durability and a clean aesthetic, while meeting ASME B18.3 specifications for reliable performance.
Specification Summary & Compliance
This screw features precise UNC coarse threading with a Class 3A thread fit for accurate engagement, and dimensions including a 5/8" length, 0.312" head diameter, and 3/32" hex drive size. It is manufactured in compliance with ASME B18.3 standards and adheres to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring no hazardous substances and supporting sustainable procurement practices.
