S-92949A261 10-32 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
- Exceptional thread reliability with Class 3A UNF fine threads ensuring precise, vibration-resistant fastening in critical applications
- High-strength performance delivering 70,000 psi tensile strength and Rockwell B55 hardness for demanding mechanical assemblies
- Optimized drive engagement featuring hex drive design for secure tool mating and reduced stripping during installation
- Streamlined installation with fully threaded design providing consistent clamping force along the entire 1/4" length
- Enhanced safety profile with rounded button head design minimizing sharp edges and improving operator safety
- Regulatory compliance assurance meeting ASME B18.3 specifications while being RoHS 3 and REACH compliant
Professional Applications & Engineering Value
These 10-32 UNF rounded head screws deliver critical engineering advantages in precision assemblies where vibration resistance and material compatibility are paramount. The 18-8 stainless steel construction with passivated finish provides exceptional corrosion protection for industrial equipment, medical devices, and marine applications. The Class 3A thread fit ensures superior engagement in tapped holes, reducing the risk of cross-threading while maintaining consistent clamping force in high-vibration environments. The combination of 70,000 psi tensile strength and fine UNF threading makes these hex drive screws ideal for electronic enclosures, precision instruments, and machinery where space constraints demand reliable, high-strength fastening solutions.
Specification Summary & Compliance
Manufactured to exacting ASME B18.3 standards with Class 3A thread fit tolerance for precision applications. The 10-32 UNF fine thread configuration ensures optimal engagement in mating components. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. Dimensions include 1/4" length, 0.361" head diameter, and 1/8" hex drive size. The fully threaded design maintains consistent performance throughout the fastener length.
