S-97715A556 5/16"-18 x 1 1/4" Brass Button Head Hex-Drive Screws
Brass Button Head Hex-Drive 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 industrial environments
- Precise Class 3A thread fit ensures secure fastening with minimal vibration loosening in critical applications
- High 50,000 psi tensile strength provides reliable load-bearing capacity for demanding mechanical assemblies
- Rockwell B55 hardness maintains thread integrity through repeated installation cycles
- 3/16" hex drive design enables secure tool engagement and efficient installation in confined spaces
- Full threading along 1¼" length offers maximum grip strength across the entire fastener engagement
- Regulatory compliance with RoHS 3 and REACH standards ensures environmental responsibility in global supply chains
Professional Applications & Engineering Value
Engineered for demanding industrial applications, these brass rounded head screws combine material excellence with precision manufacturing. The 5/16"-18 UNC coarse threading with Class 3A fit provides exceptional vibration resistance in machinery, electrical enclosures, and marine equipment where corrosion resistance is critical. The button head profile with hex drive installation ensures flush mounting while allowing high torque application without stripping. Perfect for plumbing systems, electrical components, and marine hardware, these screws deliver reliable performance where moisture, chemicals, or electrical conductivity requirements eliminate steel alternatives. The fully threaded design maximizes holding power across the entire engagement length, preventing joint failure in high-stress applications.
Specification Summary & Compliance
Manufactured to precise inch system specifications with 5/16"-18 UNC coarse threads meeting Class 3A thread fit standards for superior dimensional accuracy. Compliant with RoHS 3 (2015/863/EU) under exemption 6(c) for lead in copper alloy and REACH (EC 1907/2006) regulations. The right-hand thread direction and standard rounded head profile ensure compatibility with industry-standard installation tools and procedures.
