S-91794A086 2-56 x 1" ASME B18.6.3 Stainless Steel Fillister Head Slotted Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel and passivated finish, ideal for harsh industrial environments.
• High tensile strength of 70,000 psi ensures reliable, long-lasting fastening under demanding loads.
• Excellent thread engagement with 2-56 UNC coarse threading and Class 2A fit for quick assembly and vibration resistance.
• Enhanced drive stability from the high, narrow rounded fillister head design, reducing cam-out during installation.
• Full threading along the 1" length provides maximum grip and adjustability in various material thicknesses.
• Consistent hardness (Rockwell B55) maintains structural integrity and prevents stripping or deformation.
• Compliance with ASME B18.6.3, RoHS 3, and REACH guarantees quality, safety, and environmental standards for global applications.

Professional Applications & Engineering Value

These 2-56 UNC Rounded Fillister Head Slotted Screws in 18-8 Stainless Steel are engineered to address common industrial challenges such as corrosion, vibration loosening, and assembly efficiency. The passivated finish significantly enhances corrosion resistance, making them suitable for applications in moist or chemically aggressive environments like marine equipment, food processing machinery, and outdoor structures. The coarse UNC threads and Class 2A fit ensure easy starts and secure fastening, reducing installation time and minimizing the risk of cross-threading. With a high, narrow rounded head profile and slotted drive, these screws offer improved torque transmission and a low-profile appearance, ideal for electronic enclosures, precision instruments, and automotive components where space and reliability are critical. Their fully threaded 1" length and robust 70,000 psi tensile strength provide versatile and durable fastening solutions that withstand dynamic loads and thermal cycling, ensuring long-term performance in demanding B2B settings.

Specification Summary & Compliance

This product features precise 2-56 UNC coarse threads with a Class 2A thread fit, ensuring consistent dimensional accuracy and ease of assembly. Manufactured in compliance with ASME B18.6.3 specifications, it guarantees reliable performance in industrial applications. The screws are fully threaded and made from 18-8 Stainless Steel with a passivated finish for added durability. Additionally, they meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming adherence to environmental and safety standards without restricted substances.