S-91783A209 8-32 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 construction and passivated finish for extended service life in harsh environments
• Exceptional mechanical strength with 100,000 psi tensile strength and Rockwell B100 hardness for reliable load-bearing performance
• Optimized thread engagement through UNC coarse threading and Class 2A fit ensuring secure fastening and vibration resistance
• Industry-standard compliance with ASME B18.6.3 specifications for consistent quality and interchangeability
• Enhanced installation control with slotted drive design providing straightforward tool engagement and torque application
• Environmental responsibility through RoHS 3 and REACH compliance, meeting international regulatory requirements
• Versatile partial threading allowing precise clamping force distribution across the 3" length for various material thicknesses

Professional Applications & Engineering Value

This 8-32 UNC coarse thread screw delivers critical performance advantages for industrial applications where corrosion resistance and mechanical reliability are paramount. The 18-8 stainless steel composition, enhanced by passivated surface treatment, provides exceptional protection against chemical exposure and atmospheric corrosion in manufacturing facilities, marine environments, and food processing equipment. The rounded head design with slotted drive offers superior flush mounting capabilities while maintaining straightforward installation access. With partial threading along its 3-inch length, this fastener enables precise tension control when securing components of varying thicknesses, preventing thread stripping and ensuring uniform clamping pressure. These engineering characteristics make it particularly valuable for assembly lines, machinery frames, and electronic enclosures where vibration resistance and long-term structural integrity are essential.

Specification Summary & Compliance

Manufactured to precise inch system dimensions with Class 2A thread fit tolerances ensuring consistent mating with standard nuts and threaded holes. The UNC coarse thread profile (8-32 size) provides optimal engagement in various materials. Compliance with ASME B18.6.3 manufacturing standards guarantees dimensional accuracy and mechanical performance. Environmental certifications include full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming adherence to international substance restriction requirements.