S-90022A110 4-40 x 1/4" ASME B18.3 Steel Pan Head Torx Screws
Steel Pan Head Torx 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 zinc-plated steel construction, extending service life in demanding industrial environments
- Enhanced torque transmission and reduced cam-out through precision Torx T10 drive system for secure, efficient fastening
- Reliable thread engagement with fully threaded UNC coarse thread design and Class 2A fit for consistent clamping force
- Optimized bearing surface with rounded pan head profile and 0.219" diameter for improved load distribution
- Exceptional mechanical strength backed by Rockwell B70 hardness rating for durable performance under stress
- Broad compatibility with standard 4-40 UNC components and inch-system equipment
- Regulatory compliance assurance meeting ASME B18.3 specifications and environmental standards including RoHS 3 and REACH
Professional Applications & Engineering Value
These 4-40 UNC zinc-plated steel screws deliver critical performance advantages in industrial fastening applications where corrosion resistance and reliable torque transmission are paramount. The Torx T10 drive system prevents tool slippage and damage to fastener heads, while the fully threaded coarse UNC design ensures rapid installation and vibration resistance in assembly lines, electronic enclosures, and machinery components. The rounded pan head profile provides an optimal balance between low-profile clearance and sufficient bearing surface, making these industrial screws ideal for applications requiring both aesthetic cleanliness and structural integrity. The combination of Rockwell B70 hardness and zinc-plated corrosion protection addresses common failure points in manufacturing environments, extending maintenance intervals and reducing total cost of ownership.
Specification Summary & Compliance
Manufactured to precise dimensional standards with Class 2A thread fit ensuring consistent interchangeability. Complies with ASME B18.3 mechanical specifications for screw manufacturing. Meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for restricted substance compliance. Features right-hand UNC coarse threads with 1/4" length and standard pan head configuration per inch system requirements.
