S-91783A057 0-80 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, ideal for harsh industrial environments
• Exceptional tensile strength rated at 100,000 psi for reliable performance in high-stress applications
• Precision fine threading (0-80 UNF) with Class 2A fit ensures secure fastening and vibration resistance
• Fully threaded design provides maximum grip length and uniform load distribution
• Standard rounded head profile with slotted drive offers easy installation and professional appearance
• Compliance with major industry standards including ASME B18.6.3 for dimensional accuracy and reliability
• Environmental regulation compliance with RoHS 3 and REACH standards for safe global usage

Professional Applications & Engineering Value

These 0-80 UNF fine thread screws with rounded head slotted design provide critical solutions for precision assembly applications where space constraints and corrosion resistance are paramount. The combination of 18-8 stainless steel material and passivated finish creates a robust barrier against oxidation and chemical exposure, extending service life in demanding environments like electronics enclosures, instrumentation, and medical devices. The fine thread configuration delivers superior holding power in thin materials and delicate components, while the Class 2A thread fit ensures consistent engagement without binding. With fully threaded construction and Rockwell B100 hardness, these fasteners maintain integrity under sustained loads and thermal cycling, making them ideal for OEM applications requiring reliable, long-term performance.

Specification Summary & Compliance

This precision fastener features a 0-80 UNF fine thread with Class 2A tolerance for consistent fit and performance. Manufacturing complies with ASME B18.6.3 specifications for dimensional accuracy and mechanical properties. The product meets RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) standards for environmental safety. With complete threading along the 3/8" length and right-hand thread direction, these screws deliver reliable fastening performance across industrial applications.