S-92949A630 3/8"-16 x 1 3/4" ASME B18.3 Stainless Steel Button Head Hex-Drive Screws

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 heavy-duty applications
• Precision thread engagement with Class 3A fit and UNC coarse threads ensuring reliable, vibration-resistant connections
• Secure installation and removal through hex drive (7/32") design preventing cam-out and enabling high torque application
• Full-length threading providing maximum grip and load distribution across the entire fastener length
• Industry standard compliance meeting ASME B18.3 specifications for dimensional accuracy and performance reliability
• Environmental regulation adherence with RoHS 3 and REACH compliance for safe use in regulated industries

Professional Applications & Engineering Value

This 3/8"-16 UNC fully threaded rounded head screw delivers critical engineering advantages for industrial applications where corrosion resistance and structural integrity are paramount. The 18-8 stainless steel composition combined with passivated finish creates a protective barrier against chemical exposure and atmospheric corrosion, significantly extending service life in manufacturing, marine, and chemical processing environments. The Class 3A thread fit with coarse UNC threading ensures rapid assembly and superior vibration resistance, while the hex drive configuration allows for high-torque installation without stripping. The fully threaded design maximizes clamping force distribution, making these industrial screws ideal for heavy machinery, structural frameworks, and equipment requiring reliable, permanent fastening solutions that withstand extreme operational stresses.

Specification Summary & Compliance

This fastener maintains precise dimensional accuracy with Class 3A thread fit per UNC standards, ensuring tight tolerances for critical applications. Manufacturing adheres to ASME B18.3 specifications for rounded head screws, guaranteeing consistent performance and interchangeability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming its suitability for use in regulated industries and international markets.