S-96075A219 1/4"-20 x 3/4" ASME B18.3 Tamper-Resistant Torx Steel Button Head Screws
Tamper-Resistant Torx Steel Button 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 tamper resistance with specialized Torx T27 drive design to prevent unauthorized access in secure environments
- Exceptional durability and corrosion protection through black-oxide coating on alloy steel construction
- High-load bearing capability with 130,000 psi tensile strength for demanding industrial applications
- Precise thread engagement with Class 3A UNC coarse threads ensuring reliable fastening performance
- Optimized head design featuring rounded button profile for reduced snagging and clean installation appearance
- Consistent material performance with Rockwell C38 hardness maintaining structural integrity under stress
- Full-threaded construction providing maximum grip length and uniform load distribution
Professional Applications & Engineering Value
This black-oxide alloy steel rounded head screw delivers critical security and reliability for industrial applications where tampering prevention is paramount. The specialized tamper-resistant Torx T27 drive system ensures only authorized personnel can install or remove these fasteners, making them ideal for public infrastructure, machinery guards, and electronic enclosures. The UNC coarse threading with Class 3A fit provides excellent engagement in various materials while resisting vibration-induced loosening. With 130,000 psi tensile strength and Rockwell C38 hardness, these security screws maintain structural integrity in high-stress environments, from manufacturing equipment to transportation systems. The combination of fully threaded design and rounded button head profile offers both maximum holding power and a low-profile installation that reduces snagging hazards in operational settings.
Specification Summary & Compliance
This fastener features precision 1/4"-20 UNC coarse threads with Class 3A fit for superior thread engagement and meets ASME B18.3 dimensional standards. Manufacturing compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. The screw maintains exacting dimensional specifications including 0.437" head diameter, 3/4" length, and right-hand thread direction, ensuring interchangeability and reliable performance across industrial applications.
