S-91794A057 0-80 x 3/8" ASME B18.6.3 Stainless Steel Fillister Head Slotted Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 18-8 stainless steel construction and passivated finish, ideal for harsh industrial environments.
• Superior mechanical strength offering 70,000 psi tensile strength and Rockwell B55 hardness for reliable, long-term load-bearing applications.
• Precise thread engagement with Class 2A fit and UNF fine threads, ensuring secure, vibration-resistant connections in precision assemblies.
• Optimized head design featuring a high, narrow Fillister profile and slotted drive for efficient installation and a low-profile, professional finish.
• Full threading along the 3/8" length provides maximum grip and adjustment flexibility in confined spaces.
• Compliance with major industry standards including ASME B18.6.3, guaranteeing dimensional accuracy and interchangeability.
• Environmentally responsible manufacturing with RoHS 3 and REACH compliance, meeting global regulatory requirements for safe use.

Professional Applications & Engineering Value

This 0-80 UNF fine thread screw is engineered to address critical fastening challenges in precision-driven sectors. The 18-8 stainless steel material, enhanced by a passivated finish, provides excellent resistance to oxidation and chemical exposure, making it suitable for electronics, medical devices, and aerospace components where cleanliness and durability are paramount. The Fillister head with a slotted drive allows for deep socket engagement and high torque application without slippage, reducing assembly time and tool wear. Its fully threaded design ensures consistent clamping force across the entire 3/8" length, vital for maintaining alignment in sensitive instrumentation and machinery. By integrating fine threading and a rounded head profile, this screw minimizes the risk of cross-threading and offers a sleek, snag-free surface—ideal for applications requiring both performance and aesthetic appeal.

Specification Summary & Compliance

This screw adheres to Class 2A thread fit tolerances per UNF standards, ensuring precise and repeatable installation. It is manufactured in compliance with ASME B18.6.3 specifications for dimensional consistency and mechanical properties. The product meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulatory requirements, confirming its suitability for use in environments with strict environmental and health safety standards.