S-92949A325 3-48 x 1/4" 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 with 18-8 stainless steel construction and passivated finish for extended service life in harsh environments
- Precise installation and high torque capability through hex drive design with 1/16" drive size for secure fastening operations
- Exceptional thread reliability with Class 3A thread fit ensuring consistent engagement and vibration resistance
- Optimized mechanical performance delivering 70,000 psi tensile strength and Rockwell B55 hardness for demanding applications
- Enhanced seating and reduced stress concentration through rounded button head profile design
- Wide compatibility with UNC coarse thread pattern and right-hand threading for standard industrial applications
- Full regulatory compliance meeting ASME B18.3 standards and environmental regulations including RoHS 3 and REACH
Professional Applications & Engineering Value
These 3-48 UNC rounded head screws deliver critical engineering advantages in industrial fastening scenarios where reliability is paramount. The 18-8 stainless steel composition combined with passivated finish provides exceptional resistance to corrosion and chemical exposure, making them ideal for manufacturing equipment, electronic enclosures, and machinery subjected to demanding operational conditions. The Class 3A thread fit ensures precise mating with components, minimizing the risk of loosening under vibration while the hex drive design facilitates secure installation in confined spaces. With 70,000 psi tensile strength and coarse threading, these fasteners maintain structural integrity in high-stress applications, offering engineers a dependable solution for critical assemblies requiring consistent performance and long-term durability.
Specification Summary & Compliance
Manufactured to exacting dimensional standards with Class 3A thread fit precision and UNC thread form specifications. These rounded head screws feature a 1/4" length with 0.188" head diameter and fully threaded construction. Compliance includes ASME B18.3 manufacturing standards, RoHS 3 (2015/863/EU) environmental directives, and REACH (EC 1907/2006) regulatory requirements for industrial applications.
