S-91783A079 2-56 x 3/8" 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 delivering 100,000 psi tensile strength and Rockwell B100 hardness for reliable load-bearing applications
• Optimized thread engagement through UNC coarse threading and Class 2A fit ensuring secure fastening and vibration resistance
• Simplified installation and maintenance with standard slotted drive design for easy tool compatibility
• Full-threaded construction providing maximum grip length and uniform stress distribution across the entire fastener
• Rounded head profile offering smooth surface transition and reduced risk of snagging or damage to adjacent components
• Regulatory compliance assurance meeting ASME B18.6.3 specifications while being RoHS 3 and REACH compliant for global market access

Professional Applications & Engineering Value

This 2-56 UNC rounded head slotted screw delivers critical engineering advantages where corrosion resistance and mechanical reliability are paramount. The combination of 18-8 stainless steel construction with passivated finish creates a protective barrier against chemical exposure and atmospheric corrosion, making it ideal for industrial equipment, electronic enclosures, and marine applications. The coarse thread design provides excellent engagement in softer materials and blind holes, while the fully threaded configuration ensures maximum holding power across the entire 3/8" length. The rounded head profile with slotted drive facilitates quick assembly and disassembly in space-constrained environments, reducing installation time and maintenance costs. These industrial fasteners maintain dimensional stability under vibration and thermal cycling, preventing loosening in critical assemblies.

Specification Summary & Compliance

This fastener maintains Class 2A thread fit tolerances per UNC standards with right-hand threading and 0.086" thread diameter. Manufacturing complies with ASME B18.6.3 specifications for dimensional accuracy and performance requirements. The product is certified RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring adherence to international environmental regulations for hazardous substance restrictions.