S-91355A075 8-32 x 1/2" ASME B18.3, ASTM F835 Steel Flanged Button Head Hex-Drive Screws
Steel Flanged Button Head Hex-Drive 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 black-oxide coating, extending service life in demanding industrial environments.
- Exceptional mechanical strength from alloy steel, offering 120,000 psi tensile strength for high-stress applications.
- Precise and reliable fastening with Class 3A thread fit, ensuring tight, secure connections and reducing assembly errors.
- Easy installation and removal with hex drive and fully threaded design, speeding up maintenance and assembly processes.
- Enhanced load distribution from the flanged, wide button head, minimizing surface damage and improving joint integrity.
- High hardness rating (Rockwell C39) provides excellent wear resistance, maintaining thread integrity through repeated use.
- Broad compatibility with UNC coarse threads and right-hand direction, suitable for standard industrial equipment and components.
Professional Applications & Engineering Value
Engineered for rigorous industrial use, these 8-32 UNC thread screws in black-oxide alloy steel address common challenges like vibration loosening and corrosion. The Class 3A thread fit and coarse thread spacing ensure quick assembly and reliable performance in machinery, automotive, and electronic enclosures. The flanged rounded head distributes clamping force evenly, preventing surface damage on softer materials. With a hex drive for secure tool engagement, these fully threaded screws offer consistent holding power, making them ideal for applications requiring high tensile strength and durability under dynamic loads.
Specification Summary & Compliance
This screw meets ASME B18.3 specifications with precise Class 3A thread fit and UNC coarse threading. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental and safety standards. Dimensions include a 1/2" length, 8-32 thread size, and 3/32" hex drive, manufactured to exact tolerances for consistent performance in industrial fastening systems.
