S-99355A250 10-32 x 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 for long-lasting performance in demanding environments
- Exceptional tensile strength rated at 70,000 psi ensures reliable fastening under high-stress conditions
- Precision Class 2A thread fit provides smooth installation and consistent engagement with mating components
- Fully threaded design maximizes holding power and distributes load evenly across the entire fastener length
- Rockwell B70 hardness maintains structural integrity and resists deformation during installation
- Fine UNF threading offers superior vibration resistance and precise adjustment capabilities
- Comprehensive compliance with ASME B18.3, RoHS 3, and REACH ensures regulatory acceptance for industrial applications
Professional Applications & Engineering Value
Our 18-8 stainless steel rounded head screws with 10-32 UNF fine threading deliver exceptional engineering value across industrial applications. The corrosion-resistant material prevents degradation in harsh environments, while the 70,000 psi tensile strength addresses critical load-bearing requirements in machinery assembly and equipment manufacturing. The fully threaded design and Class 2A thread fit eliminate play and provide consistent clamping force, solving common vibration-induced loosening issues. The rounded button head profile with U10 asymmetrical drive ensures secure tool engagement and reduces installation time, making these industrial screws ideal for precision applications where reliability and regulatory compliance are paramount.
Specification Summary & Compliance
This 10-32 UNF screw features precision Class 2A thread fit with fine thread spacing manufactured to ASME B18.3 specifications. The fastener maintains dimensional accuracy with 1/2" length and 0.19" thread diameter, ensuring consistent performance across applications. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming environmental safety and material restrictions adherence for global industrial use.
