S-94063A321 10-32 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, ensuring long-term reliability in harsh environments.
- Exceptional mechanical strength offering 70,000 psi tensile strength and Rockwell B70 hardness for demanding load-bearing applications.
- Precise, secure fastening with Class 2A thread fit and UNF fine thread spacing, minimizing the risk of loosening under vibration.
- Streamlined, flush installation featuring a standard flat head with an 82° countersink angle for a smooth, unobtrusive surface finish.
- Tamper-resistant and specialized drive with a drilled spanner design, enhancing security in high-value or public-facing equipment.
- Full thread engagement along the entire 5/8" length, providing maximum grip and load distribution in assembled components.
- Guaranteed quality and compliance meeting ASME B18.6.3 specifications and environmental standards like RoHS 3 and REACH.
Professional Applications & Engineering Value
This 10-32 UNF flat head spanner screw is engineered to address critical challenges in precision machinery, electronics, and marine equipment where corrosion resistance and vibration resistance are paramount. The combination of 18-8 stainless steel and a passivated finish provides a robust barrier against oxidation and chemical exposure, significantly extending service life in demanding conditions. The drilled spanner drive offers a secure, tamper-resistant fastening solution, ideal for applications requiring restricted access or enhanced security. With its fully threaded design and Class 2A thread fit, it ensures consistent clamping force and prevents back-off in dynamic environments, making it a reliable choice for aerospace, automotive, and industrial assembly lines where fastener failure is not an option.
Specification Summary & Compliance
This screw features a 10-32 UNF thread with Class 2A tolerance for precise fit, a 5/8" length, and fine thread spacing. It is manufactured in compliance with ASME B18.6.3 standards and is confirmed to be RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring adherence to strict industry and environmental regulations.
