S-90604A567 1/4"-20 x 1 1/4" ASME B18.6.3 Stainless Steel Pan Head Combination Phillips/Slotted Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction and passivated finish, ideal for harsh industrial environments
• Exceptional mechanical strength delivering 100,000 psi tensile strength and Rockwell B100 hardness for heavy-duty applications
• Reliable fastening performance with fully threaded UNC coarse thread design ensuring secure connections
• Dual-drive convenience featuring both Phillips and slotted drive styles for flexible installation options
• Precision thread fit with Class 2A tolerance providing consistent engagement and vibration resistance
• Standard compliance assurance meeting ASME B18.6.3 specifications for dimensional accuracy
• Environmental regulation compliance with RoHS 3 and REACH adherence for safe industrial use

Professional Applications & Engineering Value

This 1/4-20 UNC fully threaded screw with rounded pan head design addresses critical industrial fastening challenges where corrosion resistance and mechanical reliability are paramount. The 18-8 stainless steel material combined with passivated finish provides exceptional protection against chemical exposure and atmospheric corrosion, making it ideal for marine equipment, food processing machinery, and outdoor structural applications. The coarse thread configuration ensures rapid installation and superior holding power in various materials, while the dual Phillips/slotted drive options accommodate different tool requirements in maintenance and assembly operations. Engineered to withstand high-stress conditions with its 100,000 psi tensile strength, this heavy-duty fastener delivers long-term performance reliability in demanding industrial environments.

Specification Summary & Compliance

This 1/4"-20 UNC screw features Class 2A thread fit tolerance for precise engagement, manufactured according to ASME B18.6.3 standards for dimensional accuracy. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across industrial applications. With complete threading along the 1-1/4" length and No. 3 drive size compatibility, this fastener meets rigorous industrial specifications for reliability and performance.