S-99355A265 10-32 x 1 1/2" ASME B18.3 Tamper-Resistant Asymmetrical-Drive Stainless Steel Button Head Screws
Tamper-Resistant Asymmetrical-Drive Stainless 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 corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
- Exceptional mechanical strength delivering 70,000 psi tensile strength for reliable, long-lasting fastening
- Precise thread engagement with UNF fine threading and Class 2A fit for secure, vibration-resistant connections
- Optimized drive performance featuring an asymmetrical U10 drive for efficient installation and reduced cam-out
- Enhanced durability with Rockwell B70 hardness to withstand repeated use and mechanical stress
- Full thread coverage along the 1-1/2" length for maximum grip and load distribution
- Regulatory compliance assurance meeting ASME B18.3 standards and environmental RoHS/REACH requirements
Professional Applications & Engineering Value
These 18-8 stainless steel rounded head screws provide critical solutions for demanding industrial applications where corrosion resistance and mechanical reliability are paramount. The UNF fine threading and Class 2A thread fit ensure precise alignment and secure fastening in machinery, equipment assembly, and structural components subjected to vibration or thermal cycling. The asymmetrical U10 drive minimizes stripping during high-torque installation, while the fully threaded design maximizes engagement in through-holes and tapped applications. Engineered to ASME B18.3 specifications, these fasteners deliver consistent performance in automotive, aerospace, and marine environments where failure is not an option.
Specification Summary & Compliance
This 10-32 UNF screw features precise Class 2A thread fit tolerances with fully threaded 1-1/2" length. Manufactured to ASME B18.3 standards with compliance to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. The fastener maintains dimensional accuracy with 0.19" thread diameter and fine thread spacing, ensuring interoperability with standard UNF components.
