S-92210A730 1/2"-13 x 4 1/2" ASME B18.3 Stainless Steel Hex Drive Flat Head Screws
Stainless 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
- Superior corrosion resistance with 18-8 stainless steel construction and passivated finish, ideal for harsh industrial environments
- Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B55 hardness for heavy-duty applications
- Precision thread engagement with Class 3A fit and UNC coarse spacing ensuring reliable fastening and vibration resistance
- Optimal flush mounting with standard 82° countersink angle and flat head design for seamless surface integration
- Enhanced installation efficiency with 5/16" hex drive providing superior torque transmission and slip resistance
- Full regulatory compliance meeting ASME B18.3 standards, RoHS 3, and REACH for global industrial acceptance
- Complete thread coverage with 4 1/2" fully threaded design maximizing grip length and load distribution
Professional Applications & Engineering Value
Engineered for demanding industrial applications, these 1/2"-13 UNC flat head screws deliver exceptional performance in machinery assembly, structural frameworks, and equipment manufacturing. The 18-8 stainless steel composition combined with passivated finish provides superior corrosion resistance in chemically aggressive environments, while the Class 3A thread fit and UNC coarse spacing ensure rapid installation and reliable vibration resistance. The 82° countersink angle creates flush surface mounting critical for aerodynamic surfaces and safety-critical assemblies. With 70,000 psi tensile strength and Rockwell B55 hardness, these hex drive screws maintain structural integrity under extreme mechanical stress, making them ideal for heavy machinery, transportation equipment, and industrial infrastructure where fastener failure is not an option.
Specification Summary & Compliance
Manufactured to precise dimensional standards with Class 3A thread fit and UNC coarse thread spacing (1/2"-13). Full compliance with ASME B18.3 specifications for dimensional accuracy and performance. Meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. Features include 82° countersink angle, 4 1/2" fully threaded length, and right-hand thread orientation.
