S-97595A586 5/16"-18 x 5/8" 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, ideal for harsh environments and electrical applications where rust prevention is critical
- Exceptional tensile strength rated at 50,000 PSI ensures reliable performance under heavy loads and vibration
- Precision Class 3A thread fit provides tighter tolerances for secure fastening and reduced risk of loosening
- Fully threaded UNC coarse spacing enables faster installation and better grip in softer materials
- 82° countersink angle with standard flat head profile allows for clean, flush mounting without protruding edges
- Hex drive design (3/16") offers superior torque transmission and prevents cam-out during installation
- Rockwell B55 hardness maintains thread integrity and durability through repeated use
Professional Applications & Engineering Value
Engineered for demanding industrial applications, this brass flat head screw combines material excellence with precision manufacturing to solve critical fastening challenges. The UNC coarse thread configuration provides rapid assembly in wood, plastic, and soft metals while maintaining secure holding power. The 82° countersink angle ensures perfect flush mounting in precision machinery, electrical enclosures, and marine equipment where surface protrusions are unacceptable. Brass construction offers inherent corrosion resistance for outdoor, marine, and chemical processing environments, while the hex drive design prevents stripping during high-torque installations. These fully threaded fasteners deliver consistent performance in vibration-prone applications across automotive, aerospace, and industrial manufacturing sectors.
Specification Summary & Compliance
This fastener maintains precise Class 3A thread fit tolerances with UNC coarse thread spacing (5/16"-18) and right-hand threading. Manufacturing complies with ASME B18.3 specifications for dimensional accuracy and performance standards. The product is fully RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant, meeting international environmental and safety regulations for industrial components.
