S-92949A197 8-32 x 3/4" 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 from 18-8 stainless steel construction and passivated finish, ensuring longevity in harsh industrial environments
- High-strength performance with 70,000 psi tensile strength and Rockwell B55 hardness for reliable load-bearing in demanding applications
- Precise Class 3A thread fit providing secure, vibration-resistant fastening with consistent engagement
- Hex drive design offering superior torque transmission and reduced tool slippage during installation
- Fully threaded shank enabling maximum grip length and uniform stress distribution along the entire fastener
- Regulatory compliance with RoHS 3 and REACH standards, ensuring environmental safety and material transparency
- Standardized dimensions per ASME B18.3 specifications for guaranteed interchangeability and engineering consistency
Professional Applications & Engineering Value
This 8-32 UNC rounded head screw delivers exceptional engineering value through its 18-8 stainless steel composition and passivated finish, specifically engineered to combat corrosion in manufacturing equipment, marine components, and chemical processing systems. The hex drive configuration provides superior torque resistance compared to standard drives, preventing stripping during high-tension assembly operations. With coarse thread spacing and Class 3A thread fit, these screws maintain secure fastening under vibration and thermal cycling conditions common in industrial machinery. The fully threaded design ensures maximum engagement in tapped holes and through-holes alike, making them ideal for precision assemblies requiring consistent clamping force across the entire fastener length.
Specification Summary & Compliance
Manufactured to exacting ASME B18.3 dimensional standards with Class 3A thread fit precision for superior engagement. The screw features UNC coarse thread profile with right-hand threading and meets comprehensive regulatory requirements including RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) compliance. Material certification confirms 18-8 stainless steel composition with passivated surface treatment for enhanced corrosion protection.
