S-94414A550 1/4"-20 x 2" ASME B18.3, ASTM F835 Alloy Steel Torx Flat Head Screws
Alloy Steel Torx Flat Head 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 black-oxide coating, ideal for harsh industrial environments
- Exceptional torque transmission through Torx Plus IP30 drive, reducing cam-out and tool wear
- High tensile strength (140,000 psi) and Rockwell C39 hardness for demanding applications
- Precise Class 3A thread fit ensures reliable engagement and vibration resistance
- Partially threaded design provides optimal clamping force in specific assembly scenarios
- Standard 82° countersink angle allows for flush mounting in various materials
- Full regulatory compliance with ASME B18.3, ASTM F835, RoHS 3, and REACH standards
Professional Applications & Engineering Value
These black-oxide alloy steel flat head screws with Torx Plus IP30 drive deliver exceptional performance in critical industrial applications. The combination of 140,000 psi tensile strength and Rockwell C39 hardness ensures reliable fastening under high stress conditions, while the black-oxide surface treatment provides superior corrosion protection in demanding environments. The 1/4"-20 UNC coarse thread with Class 3A fit offers excellent engagement in various materials, and the partially threaded design allows for precise clamping control. These flat head screws are engineered to solve common industrial challenges including vibration loosening, material fatigue, and environmental degradation, making them ideal for machinery, equipment manufacturing, and structural applications requiring high-strength fastening solutions.
Specification Summary & Compliance
These 2" length flat head screws feature precise Class 3A thread fit with 1/4"-20 UNC coarse threading and Torx Plus IP30 drive compatibility. Manufactured to ASME B18.3 specifications and ASTM F835 standards, they ensure dimensional accuracy and performance reliability. The products are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, meeting the latest industry requirements for safe and sustainable manufacturing practices.
