S-91613A444 8-32 x 1/2" ASME B18.6.3 Stainless Steel Fillister Head Slotted Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance in harsh environments due to 316 stainless steel construction and passivated finish
• High-strength performance with 100,000 psi tensile strength and Rockwell B100 hardness for reliable, durable fastening
• Optimized drive engagement with a high, narrow fillister head and slotted drive for secure tool fitting and efficient installation
• Precise thread compatibility ensured by UNC coarse threads with Class 2A fit, providing consistent engagement and vibration resistance
• Full-threaded design for maximum grip and load distribution across the entire 1/2" length
• Regulatory compliance with ASME B18.6.3, RoHS 3, and REACH, ensuring safety and environmental standards are met
• Versatile industrial application thanks to rounded head profile and right-hand threading for easy assembly in various settings

Professional Applications & Engineering Value

Engineered for demanding industrial environments, these 316 stainless steel fillister head slotted screws address critical challenges like corrosion, mechanical stress, and assembly efficiency. The passivated finish enhances surface durability, preventing oxidation in moist or chemical-exposed settings, while the high, narrow rounded head offers a low-profile yet robust design that minimizes protrusion without sacrificing drive stability. With UNC coarse threads and Class 2A fit, these screws ensure quick, reliable fastening in materials prone to stripping, reducing installation time and maintenance needs. Ideal for machinery, electronics, and marine applications, they provide long-term reliability where corrosion resistance and high tensile strength are paramount, supporting seamless integration into precision assemblies.

Specification Summary & Compliance

This screw adheres to ASME B18.6.3 specifications, with precise UNC 8-32 thread size, coarse thread spacing, and Class 2A thread fit for consistent dimensional accuracy. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and restricted substance control. The fully threaded 1/2" length and right-hand thread direction further support standardized industrial use.