S-91263A154 10-24 x 2 1/2" ASME B18.3 Alloy Steel Hex Drive Flat Head Screws
Alloy Steel Hex Drive 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
- Exceptional corrosion resistance with zinc-plated alloy steel construction for long-lasting performance in harsh industrial environments
- Superior holding power with 130,000 psi tensile strength and Rockwell C39 hardness for demanding applications
- Precise thread engagement with Class 3A fit ensuring reliable fastening and vibration resistance
- Easy installation and removal with hex drive design providing superior torque transmission
- Optimized flush mounting with 82° countersink angle and flat head design for smooth surface finishes
- Reduced material stress through partially threaded design minimizing thread stripping risks
- Regulatory compliance assurance meeting ASME B18.3, ASTM F835, RoHS 3, and REACH standards
Professional Applications & Engineering Value
These 10-24 UNC flat head screws deliver exceptional engineering value for industrial applications requiring reliable fastening solutions. The zinc-plated alloy steel construction provides superior corrosion protection in demanding environments, while the coarse thread design ensures quick installation and excellent holding power in various materials. The hex drive configuration allows for high-torque applications without cam-out issues, making them ideal for machinery assembly, structural frameworks, and equipment manufacturing. The partially threaded design concentrates strength where needed most, reducing the risk of thread damage during repeated installations. With their 82° countersink angle, these screws sit flush with surfaces, preventing snagging and maintaining clean aesthetic lines in finished products.
Specification Summary & Compliance
Manufactured to precise dimensional standards with Class 3A thread fit for superior accuracy and UNC coarse threading for optimal performance. These 2-1/2" flat head screws comply with ASME B18.3 and ASTM F835 specifications, ensuring consistent quality and reliability. The product meets RoHS 3 (2015/863/EU) compliance for hazardous substance restrictions and REACH (EC 1907/2006) requirements for chemical safety, making them suitable for global industrial applications and regulated industries.
