S-90517A113 6-32 x 3/4" 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
- Tamper-resistant hex drive prevents unauthorized removal, enhancing security in public or sensitive installations
- Corrosion-resistant 18-8 stainless steel construction ensures long-term reliability in humid or harsh industrial environments
- Passivated surface finish provides an extra protective layer against oxidation and chemical exposure
- High 70,000 psi tensile strength and Rockwell B55 hardness deliver exceptional load-bearing capacity and resistance to deformation
- Class 3A thread fit offers superior precision and tighter tolerances for secure, vibration-resistant fastening
- Flat head design with standard profile allows for flush mounting, reducing snagging and improving aesthetics
- Fully threaded UNC coarse spacing enables faster installation and stronger holding power in various materials
Professional Applications & Engineering Value
This 6-32 x 3/4" flat head tamper-resistant hex screw addresses critical needs in industrial security and maintenance applications. The combination of 18-8 stainless steel material and passivated finish provides exceptional corrosion resistance, making it ideal for outdoor equipment, electrical enclosures, and machinery exposed to moisture or chemicals. The tamper-resistant hex drive specifically prevents unauthorized access in public infrastructure, transportation systems, and secure facilities. With its UNC thread form and Class 3A thread fit, it ensures precise engagement and maintains clamping force under vibration, reducing maintenance frequency and downtime in demanding industrial environments.
Specification Summary & Compliance
This screw features Class 3A thread fit precision with UNC coarse thread spacing and complies with ASME B18.3 manufacturing specifications. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors. The dimensional accuracy includes a 1/8" tamper-resistant hex drive, 82° countersink angle, and fully threaded design for consistent performance.
