S-90517A311 10-24 x 3/8" ASME B18.3 Tamper-Resistant Hex Drive Flat Head Screws
Tamper-Resistant 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 18-8 stainless steel construction and passivated finish, ideal for harsh industrial environments
- Enhanced security and tamper-proofing through the tamper-resistant hex drive, preventing unauthorized removal
- Reliable, high-strength fastening with 70,000 psi tensile strength and Rockwell B55 hardness for demanding applications
- Precise thread engagement and vibration resistance due to Class 3A thread fit and UNC coarse threading
- Flush, low-profile installation with standard flat head design and 82° countersink angle for smooth surfaces
- Full compliance with industry standards including ASME B18.3, ensuring consistent quality and interchangeability
- Environmentally responsible manufacturing with RoHS 3 and REACH compliance for safe use in regulated industries
Professional Applications & Engineering Value
These 10-24 UNC flat head screws are engineered to address critical challenges in industrial assembly, where corrosion resistance, security, and reliable performance are paramount. The combination of 18-8 stainless steel and a passivated finish provides exceptional protection against rust and chemical exposure, making them suitable for outdoor equipment, marine hardware, and food processing machinery. The tamper-resistant hex drive offers added security in public or high-theft-risk installations, while the Class 3A thread fit and coarse threading ensure quick assembly and reduced loosening under vibration. Fully threaded for maximum grip, these screws deliver consistent 70,000 psi tensile strength across demanding applications in automotive, aerospace, and machinery manufacturing.
Specification Summary & Compliance
These screws feature a 10-24 UNC coarse thread with Class 3A thread fit for precision and durability. Dimensions include a 3/8" length, 5/32" tamper-resistant hex drive, and standard flat head profile. Manufacturing and quality adhere to ASME B18.3 specifications, ensuring dimensional accuracy and performance reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of restricted hazardous substances for safe industrial use.
