S-90910A521 8-32 x 2" ASME B18.3, ASTM F835 Steel Button Head Torx Plus Screws
Steel Button Head Torx Plus 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 alloy steel construction for extended service life in harsh environments
- Exceptional torque transmission through Torx Plus IP15 drive system, minimizing cam-out and tool wear
- High-reliability fastening with 120,000 psi tensile strength and Rockwell C39 hardness for demanding applications
- Precise thread engagement with Class 3A thread fit ensuring consistent clamping force and vibration resistance
- Optimized head design featuring rounded button profile for reduced surface protrusion and improved aesthetics
- Full-thread coverage along 2" length provides maximum grip range and installation flexibility
- Industry-standard compliance meeting ASME B18.3 and ASTM F835 specifications for guaranteed performance
Professional Applications & Engineering Value
These 8-32 UNC Torx Plus screws deliver critical performance advantages in industrial assembly where vibration resistance and consistent clamping force are paramount. The zinc-plated alloy steel construction provides essential corrosion protection for machinery, electrical enclosures, and outdoor equipment, while the Torx Plus drive system eliminates fastener damage during high-torque applications. With coarse thread spacing and Class 3A thread fit, these fully threaded screws maintain secure connections in high-vibration environments like automotive assemblies, industrial machinery, and construction equipment. The rounded button head design offers a low-profile finish that minimizes snagging hazards while providing sufficient bearing surface for reliable joint integrity.
Specification Summary & Compliance
Manufactured to exacting ASME B18.3 and ASTM F835 standards, these screws feature precision UNC coarse threads with Class 3A fit for superior thread engagement. The 2" length with fully threaded design ensures consistent performance across the entire fastener. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations guarantees environmental safety and restricted substance adherence for global industrial applications.
