S-91783A724 1/2"-13 x 3" ASME B18.6.3 Stainless Steel Round Head Slotted Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel and passivated finish for long-lasting performance in harsh environments
• Exceptional mechanical strength offering 100,000 PSI tensile strength and Rockwell B100 hardness for demanding applications
• Reliable thread engagement with Class 2A fit and UNC coarse threads ensuring secure fastening and vibration resistance
• Optimized partial threading providing enhanced grip on specific material thicknesses while reducing installation time
• Industry-standard compliance meeting ASME B18.6.3 specifications for consistent quality and interchangeability
• Environmental regulation adherence with RoHS 3 and REACH compliance for safe use in regulated industries
• Traditional slotted drive compatibility allowing use with standard tools while maintaining rounded head aesthetics

Professional Applications & Engineering Value

These 1/2"-13 UNC rounded head slotted screws deliver critical engineering solutions where corrosion resistance and high tensile strength are paramount. The 18-8 stainless steel construction with passivated finish provides exceptional protection against chemical exposure and atmospheric corrosion, making them ideal for marine, food processing, and chemical plant applications. The partially threaded design with coarse UNC threads ensures optimal clamping force distribution while the Class 2A thread fit guarantees consistent performance in vibration-prone environments. These industrial screws are engineered to maintain integrity under sustained loads up to 100,000 PSI, offering reliable fastening for machinery, structural components, and heavy equipment where failure is not an option.

Specification Summary & Compliance

This 3" length screw features precise Class 2A thread fit tolerances with 1/2"-13 UNC coarse threads and partial threading up to 1½" minimum thread length. Manufactured to ASME B18.6.3 specifications for dimensional accuracy and performance reliability. The fastener is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors. The right-hand thread direction and slotted drive style provide standardized installation compatibility with common industrial tools.