S-97595A198 1/4"-20 x 1 3/4" ASME B18.3 Brass Hex Drive Flat Head Screws
Brass 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 brass construction for long-lasting performance in harsh environments
- Exceptional thread reliability with Class 3A fit ensuring precise, secure fastening in demanding applications
- High mechanical strength offering 50,000 psi tensile strength and Rockwell B55 hardness for heavy-duty use
- Efficient installation with 5/32" hex drive design providing maximum torque transfer and reduced tool slippage
- Optimal flush mounting featuring 82° countersink angle and standard flat head profile for seamless surface integration
- Full thread engagement along the 1 3/4" length for superior holding power across the entire fastener
- Regulatory compliance meeting ASME B18.3 standards and environmental regulations including RoHS 3 and REACH
Professional Applications & Engineering Value
Engineered for industrial applications requiring both corrosion resistance and high-strength fastening, these 1/4-20 UNC brass flat head screws solve critical challenges in electrical enclosures, marine hardware, and plumbing systems. The Class 3A thread fit provides exceptional precision for vibration-resistant connections, while the fully threaded design ensures maximum grip length in thin materials. The 82° countersink angle and hex drive style combine for flush, tamper-resistant installations that withstand harsh operating conditions. These industrial brass screws deliver reliable performance where corrosion resistance and mechanical integrity are paramount.
Specification Summary & Compliance
Manufactured to precise dimensional standards with Class 3A thread fit per UNC specifications and 1/4"-20 coarse threading. Complies with ASME B18.3 manufacturing standards and maintains RoHS 3 (2015/863/EU) compliance with exemption 6(a)-I for lead as an alloying element, along with full REACH (EC 1907/2006) compliance. Features right-hand thread direction and standard flat head profile for consistent performance across industrial applications.
