S-94063A314 6-32 x 5/8" ASME B18.6.3 Tamper-Resistant Drilled Spanner Flat Head Screws
Tamper-Resistant Drilled Spanner 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 environments
- Exceptional mechanical strength offering 70,000 psi tensile strength and Rockwell B70 hardness for reliable load-bearing performance
- Precise Class 2A thread fit ensures smooth installation and secure fastening in coarse UNC threads
- Convenient drilled spanner drive provides secure tool engagement for controlled torque application
- Full threading along 5/8" length maximizes grip and distribution of clamping force
- Standard 82° flat head profile enables flush mounting for clean, aerodynamic surfaces
- Compliance with major industry standards including ASME B18.6.3, RoHS 3, and REACH for guaranteed quality and safety
Professional Applications & Engineering Value
These 6-32 UNC flat head screws with drilled spanner drive deliver critical advantages in precision assembly applications. The combination of 18-8 stainless steel and passivated finish provides exceptional resistance to oxidation and chemical exposure, solving corrosion-related failure points in manufacturing equipment, electronic enclosures, and marine components. The fully threaded design ensures maximum thread engagement in thin materials and tight spaces, while the Class 2A thread fit maintains consistent clamping force without galling or seizing. Engineers specify these fasteners for applications requiring flush mounting with reliable disassembly capability, making them ideal for aerospace panels, machinery guards, and precision instrumentation where surface continuity and corrosion resistance are paramount.
Specification Summary & Compliance
Manufactured to ASME B18.6.3 specifications with Class 2A thread fit tolerance. Features include: 6-32 UNC coarse thread, 0.138" thread diameter, 5/8" length, 0.279" head diameter, and standard 82° countersink angle. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in regulated industries.
