S-96710A221 4-40 x 1/2" Stainless Steel Pan Head Torx Plus Screws
Stainless Steel Pan 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 18-8 stainless steel construction and passivated finish for long-term reliability in harsh environments
- Enhanced torque transmission through Torx Plus IP10 drive system, reducing cam-out and tool wear during installation
- High-strength performance delivering 70,000 psi tensile strength and Rockwell B55 hardness for demanding applications
- Precision thread engagement with Class 2A UNC coarse threads ensuring secure fastening and vibration resistance
- Full threading design providing maximum grip length and uniform stress distribution across the entire fastener
- Rounded pan head profile offering low-profile installation with improved aesthetic appearance
- Regulatory compliance meeting RoHS 3 and REACH standards for environmentally responsible manufacturing
Professional Applications & Engineering Value
Engineered for precision assemblies requiring reliable fastening performance, these 4-40 UNC rounded head screws with Torx Plus drive address critical industrial challenges. The 18-8 stainless steel material combined with passivated finish provides exceptional resistance to corrosion and chemical exposure, making them ideal for electronics, medical devices, and outdoor equipment. The coarse UNC threads ensure quick installation and superior holding power in various materials, while the fully threaded design maximizes connection integrity. These industrial screws deliver consistent performance in applications where vibration resistance, precise torque control, and long-term durability are essential, supported by their 70,000 psi tensile strength rating.
Specification Summary & Compliance
This precision fastener features Class 2A thread fit with UNC coarse threading (4-40 size) and right-hand thread direction, ensuring dimensional accuracy per standard specifications. The 1/2" length and fully threaded construction provide consistent engagement across applications. Manufacturing compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming environmental responsibility and material safety standards for global industrial use.
