S-90287A199 8-32 x 1" ASME B18.6.3 Tamper-Resistant One-Way-Drive Steel Round Head Screws
Tamper-Resistant One-Way-Drive Steel Round 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 zinc-plated steel construction, extending service life in demanding environments
- High tensile strength of 60,000 PSI ensures reliable load-bearing capacity and prevents fastener failure
- Rockwell B70 hardness provides excellent wear resistance and durability under repetitive stress
- Class 2A thread fit with UNC coarse spacing enables quick assembly and secure fastening in various materials
- Fully threaded design offers maximum grip length and uniform stress distribution along the entire shank
- One-way drive style with rounded head allows for tamper-resistant installations in security-sensitive applications
- Compliance with ASME B18.6.3, RoHS 3, and REACH guarantees quality consistency and environmental safety standards
Professional Applications & Engineering Value
These 8-32 UNC rounded head screws are engineered to address critical industrial fastening challenges where vibration resistance, tamper-proof security, and consistent performance are paramount. The zinc-plated steel material provides a protective barrier against oxidation and chemical exposure, making them ideal for outdoor equipment, electrical enclosures, and machinery subjected to harsh conditions. The coarse thread spacing and Class 2A thread fit ensure rapid installation with reduced cross-threading risks, while the one-way drive style prevents unauthorized removal in public infrastructure or access-controlled assemblies. With a 60,000 PSI tensile strength and fully threaded design, these screws deliver uniform clamping force and enhanced joint integrity across automotive, manufacturing, and construction applications.
Specification Summary & Compliance
This product adheres to Class 2A thread fit tolerances per UNC standards, ensuring precise dimensional accuracy and interchangeability. Manufacturing and quality control comply with ASME B18.6.3 specifications for consistent performance. Environmental and safety regulations are met through RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, confirming the absence of restricted hazardous substances.
