S-92210A134 5-44 x 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 for extended service life in harsh environments
- Precise thread engagement with Class 3A fit ensuring reliable, vibration-resistant fastening in critical assemblies
- High strength-to-weight ratio delivering 70,000 psi tensile strength and Rockwell B55 hardness for demanding applications
- Optimal flush mounting with standard 82° countersink angle and flat head design for smooth surface finishes
- Efficient installation using 5/64" hex drive for secure torque transmission and reduced tool slippage
- Full threading coverage along the 1/2" length providing maximum grip and load distribution
- Regulatory compliance meeting ASME B18.3 specifications and environmental standards (RoHS 3, REACH)
Professional Applications & Engineering Value
These 5-44 UNF flat head screws with Class 3A thread fit provide engineering solutions where precision, strength, and corrosion resistance are critical. The 18-8 stainless steel material combined with passivated finish prevents galvanic corrosion and withstands chemical exposure in marine, automotive, and industrial equipment. The fine UNF threads offer superior vibration resistance compared to coarse threads, making them ideal for precision instruments, aerospace components, and electronic enclosures where loosening under dynamic loads is a concern. The fully threaded design ensures consistent clamping force across the entire engagement length, while the hex drive configuration allows for high-torque installation in confined spaces common in OEM manufacturing and maintenance applications.
Specification Summary & Compliance
Manufactured to ASME B18.3 standards with Class 3A thread fit for precision tolerance. Features 5-44 UNF fine threads with right-hand direction, 0.281" head diameter, and 82° countersink angle. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. System of measurement: Inch.
