S-91870A170 6-32 x 5/8" ASME B18.3 Tamper-Resistant Torx Stainless Steel Flat Head Screws
Tamper-Resistant Torx Stainless Steel 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 T15 Torx drive prevents unauthorized removal, enhancing security in public or sensitive installations
- 18-8 stainless steel construction provides excellent corrosion resistance and durability in harsh environments
- 70,000 psi tensile strength ensures reliable fastening under high-stress conditions without failure
- Passivated finish enhances corrosion protection while maintaining clean, professional appearance
- Class 2A thread fit with UNC coarse spacing enables quick installation and secure holding power
- 82° countersink angle with standard flat head profile allows for flush mounting in various materials
- Full threading along the 5/8" length provides maximum grip and load distribution throughout the engagement
Professional Applications & Engineering Value
These tamper-resistant flat head screws deliver critical security and reliability where standard fasteners fall short. The 18-8 stainless steel composition combined with passivated finish resists corrosion in demanding environments including outdoor installations, industrial equipment, and marine applications. The T15 Torx drive system prevents casual tampering while allowing authorized maintenance with proper tools. With UNC coarse thread spacing and Class 2A thread fit, these screws provide rapid installation in metal, plastic, and composite materials while maintaining precise alignment. The 82° countersink angle ensures flush mounting for safety and aesthetics in applications ranging from security panels and access controls to machinery guards and electronic enclosures.
Specification Summary & Compliance
Manufactured to exacting ASME B18.3 specifications with Class 2A thread fit tolerance for consistent performance. Features UNC coarse thread spacing with right-hand threading and complete compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. The Rockwell B70 hardness rating ensures durability while the fully threaded 5/8" length provides maximum engagement strength across the entire fastener.
