S-92949A889 1-64 x 3/8" ASME B18.3 Stainless Steel Button Head Hex-Drive Screws
Stainless Steel Button Head Hex-Drive 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 and passivated finish for extended service life in harsh environments
- Exceptional mechanical strength delivering 70,000 psi tensile strength and Rockwell B55 hardness for reliable load-bearing performance
- Precision thread engagement with Class 3A thread fit ensuring secure fastening and vibration resistance in critical assemblies
- Optimized drive efficiency through hex drive design providing maximum torque transfer and reduced tool slippage
- Enhanced installation versatility with fully threaded UNC coarse pattern enabling faster assembly across various material thicknesses
- Regulatory compliance assurance meeting ASME B18.3 specifications and environmental standards including RoHS 3 and REACH
- Streamlined profile design featuring rounded button head for reduced snagging and improved aesthetic integration
Professional Applications & Engineering Value
These 1-64 UNC threaded rounded head screws deliver critical engineering solutions where corrosion resistance and mechanical reliability are paramount. The 18-8 stainless steel composition combined with passivated surface treatment creates a protective barrier against chemical exposure and atmospheric corrosion, making them ideal for industrial equipment, electronic enclosures, and marine applications. The coarse thread pattern ensures rapid installation in softer materials while maintaining Class 3A thread fit precision for vibration-prone assemblies. With fully threaded design and hex drive compatibility, these fasteners provide consistent clamping force distribution and simplified maintenance access in confined spaces, reducing assembly time and improving long-term serviceability.
Specification Summary & Compliance
Manufactured to ASME B18.3 specifications with Class 3A thread fit tolerances ensuring precise engagement. The inch-system fasteners feature 1-64 UNC coarse threading with right-hand orientation and fully threaded 3/8" length. Compliance verified with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming restricted substance adherence for global industrial applications.
