S-91790A194 8-32 x 1/2" ASME B18.6.3 Stainless Steel Slotted Oval Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction and passivated finish, ensuring long-term reliability in harsh environments
• Exceptional mechanical strength with 80,000 psi tensile strength and Rockwell B80 hardness for demanding industrial applications
• Precision thread engagement through Class 2A fit UNC coarse threads, providing secure fastening and vibration resistance
• Optimized head design featuring standard oval profile with 82° countersink angle for flush mounting and enhanced aesthetics
• Full threading capability along the entire 1/2" length, enabling maximum grip and load distribution
• Regulatory compliance assurance meeting ASME B18.6.3 standards and environmental regulations including RoHS 3 and REACH
• Reliable drive performance with slotted drive style offering straightforward installation and removal

Professional Applications & Engineering Value

This 8-32 UNC oval head slotted machine screw delivers critical engineering advantages for industrial assembly applications where corrosion resistance and structural integrity are paramount. The 18-8 stainless steel composition, enhanced by passivated finish, provides exceptional protection against oxidation and chemical exposure in manufacturing environments, marine applications, and food processing equipment. The coarse thread design with Class 2A fit ensures rapid installation and secure fastening in materials where fine threads might strip or fail. The oval head profile with standard dimensions creates a finished appearance while the 82° countersink angle allows for proper seating in prepared holes. These flat head screws are engineered to maintain 80,000 psi tensile strength under sustained loads, making them ideal for machinery, enclosures, and structural components requiring dependable, long-term fastening solutions.

Specification Summary & Compliance

This precision fastener maintains Class 2A thread fit tolerances per UNC standards with 8-32 thread size and right-hand thread direction. Manufacturing complies with ASME B18.6.3 specifications for dimensional accuracy and performance. The screw features a 0.312" head diameter and 1/2" length with fully threaded construction. Regulatory compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring safe use across various industrial sectors.