S-91440A199 8-32 x 1" ASME B18.6.3 Steel Round Head Combination Phillips/Slotted Screws
Steel Round Head Combination Phillips/Slotted 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 zinc-plated steel construction for extended service life in demanding environments
- High tensile strength of 60,000 psi ensures reliable fastening under significant mechanical stress
- Rockwell B70 hardness provides excellent durability and resistance to wear during installation and use
- Dual Phillips/Slotted drive compatibility offers flexibility with standard tools for efficient assembly
- Class 2A thread fit guarantees smooth installation while maintaining secure fastening integrity
- Fully threaded UNC coarse thread design enables faster installation and superior holding power
- Comprehensive compliance with ASME B18.6.3 standards ensures consistent quality and performance
Professional Applications & Engineering Value
These zinc-plated steel rounded head screws deliver exceptional performance in industrial applications where corrosion resistance and mechanical reliability are critical. The combination of 60,000 psi tensile strength and Rockwell B70 hardness makes them ideal for machinery assembly, electrical enclosures, and automotive components where vibration resistance is essential. The UNC coarse threads provide superior engagement in various materials, while the dual Phillips/Slotted drive system ensures compatibility with common tools, reducing installation time and minimizing tool inventory requirements. The rounded head design distributes clamping force evenly, preventing surface damage while maintaining a professional appearance in visible applications.
Specification Summary & Compliance
Manufactured to precise Class 2A thread fit tolerances with UNC coarse threads (8-32 size) and 1" length. These screws fully comply with ASME B18.6.3 specifications for dimensional accuracy and performance. Environmental compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) standards, ensuring they meet current environmental regulations for industrial use worldwide.
