S-91783A537 1/4"-20 x 1/2" ASME B18.6.3 Stainless Steel Round Head Slotted Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 18-8 stainless steel construction and passivated finish for long-lasting performance in harsh environments
• High tensile strength rating of 100,000 PSI ensures reliable fastening under substantial mechanical stress and vibration
• Rockwell B100 hardness provides excellent durability and resistance to wear in demanding industrial applications
• Class 2A thread fit with UNC coarse threading delivers smooth installation and secure holding power
• Full threading along the entire 1/2" length enables maximum engagement and adjustment flexibility
• Slotted drive design allows for quick installation and removal with standard tools
• Comprehensive regulatory compliance including ASME B18.6.3, RoHS 3, and REACH ensures safety and environmental responsibility

Professional Applications & Engineering Value

These 18-8 stainless steel rounded head screws deliver exceptional engineering value across multiple industrial sectors. The combination of 100,000 PSI tensile strength and Rockwell B100 hardness makes them ideal for applications requiring reliable fastening under mechanical stress, including machinery assembly, electrical enclosures, and structural components. The passivated finish significantly enhances corrosion resistance, addressing common failure points in humid or chemical-exposed environments. With UNC coarse threading and Class 2A thread fit, these screws provide quick installation and secure fastening in various materials, reducing assembly time while maintaining joint integrity. The fully threaded design ensures maximum engagement depth, making them particularly valuable in applications where adjustment flexibility is critical.

Specification Summary & Compliance

This 1/4"-20 x 1/2" stainless steel screw features precise Class 2A thread fit with UNC coarse threading and right-hand thread direction, manufactured to exacting dimensional standards. The product fully complies with ASME B18.6.3 specifications for dimensional requirements and mechanical properties. Environmental compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring safe use in various industrial applications while meeting international environmental standards.