S-94063A317 8-32 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 industrial environments
- Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B70 hardness for reliable performance under heavy loads
- Precise thread engagement with Class 2A UNC coarse threads ensuring secure fastening and vibration resistance
- Streamlined flush installation featuring standard 82° countersink angle for smooth, recessed mounting in various materials
- Tamper-resistant security with drilled spanner drive design requiring specialized tools for installation and removal
- Full-threaded versatility providing maximum grip length and adjustment flexibility across the entire 5/8" shaft
- Regulatory compliance assurance meeting ASME B18.6.3 standards and environmental regulations including RoHS 3 and REACH
Professional Applications & Engineering Value
These 8-32 UNC flat head spanner screws deliver critical engineering solutions where flush mounting, corrosion resistance, and tamper-resistant security are paramount. The combination of 18-8 stainless steel material and passivated finish provides exceptional protection against chemical exposure and atmospheric corrosion in manufacturing, marine, and outdoor applications. The drilled spanner drive design prevents unauthorized access while the Class 2A thread fit ensures consistent engagement in machinery, electronic enclosures, and precision equipment. The 82° countersink angle allows for seamless integration into metal, plastic, and composite materials, eliminating protrusions that could interfere with moving parts or aesthetic requirements.
Specification Summary & Compliance
Manufactured to exacting ASME B18.6.3 specifications with Class 2A thread fit tolerance for consistent performance. Features 8-32 UNC coarse threads with right-hand direction and full threading along the 5/8" length. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global industrial markets.
