S-91783A146 6-32 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 construction and passivated finish for extended service life in harsh environments
• Exceptional mechanical strength delivering 100,000 psi tensile strength and Rockwell B100 hardness for reliable performance under high-stress conditions
• Precision thread engagement with Class 2A UNC coarse threads ensuring consistent fit and reduced cross-threading risks
• Optimized drive efficiency through slotted drive design providing straightforward installation with standard tools
• Full-threaded design maximizing grip length and load distribution across the entire fastener
• Regulatory compliance assurance meeting ASME B18.6.3 specifications and environmental standards including RoHS 3 and REACH
• Versatile rounded head profile offering smooth surface transition and reduced snagging in assembled applications

Professional Applications & Engineering Value

This 6-32 UNC machine screw delivers critical performance advantages for industrial assembly applications where corrosion resistance and mechanical reliability are paramount. The 18-8 stainless steel composition, enhanced by passivated surface treatment, provides exceptional protection against oxidation and chemical degradation in manufacturing environments, marine applications, and food processing equipment. The coarse thread spacing combined with Class 2A thread fit ensures rapid installation and secure fastening in various materials while minimizing thread stripping. The fully threaded design maximizes clamping force distribution, making it ideal for electronic enclosures, machinery guards, and structural components requiring consistent load-bearing capability. These engineering features address common industrial challenges including vibration resistance, environmental durability, and maintenance accessibility through the slotted drive configuration.

Specification Summary & Compliance

This rounded head machine screw maintains precision Class 2A thread fit according to UNC standards with coarse thread spacing. Manufacturing complies with ASME B18.6.3 specifications for dimensional accuracy and mechanical properties. The product meets RoHS 3 (2015/863/EU) compliance for hazardous substance restrictions and REACH (EC 1907/2006) environmental standards, ensuring regulatory acceptance for international industrial applications.