S-91792A115 4-40 x 1" ASME B18.6.3 Stainless Steel Pan Head Slotted Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction and passivated finish for long-lasting performance in harsh environments.
• High mechanical strength offering 100,000 psi tensile strength and Rockwell B100 hardness for reliable load-bearing in demanding applications.
• Wide compatibility and easy installation thanks to the coarse UNC thread and Class 2A fit, ensuring smooth engagement with standard nuts and tapped holes.
• Secure and flush fastening provided by the rounded pan head design, distributing clamp load effectively while the slotted drive accepts standard screwdrivers.
• Full thread engagement along the entire 1" length for maximum grip and vibration resistance in assembled components.
• Regulatory compliance assurance meeting ASME B18.6.3 manufacturing standards, RoHS 3, and REACH for safe use in regulated industries.
• Right-hand thread direction for intuitive, standard installation procedures, reducing assembly errors and training time.

Professional Applications & Engineering Value

Engineered for precision and endurance, these 4-40 UNC rounded pan head slotted screws address critical needs in industrial assembly where corrosion and mechanical stress are concerns. The 18-8 stainless steel material, enhanced by a passivated finish, provides exceptional resistance to oxidation and chemical exposure, making these fasteners ideal for electronics enclosures, machinery panels, and outdoor equipment. The coarse thread design ensures quick installation and reduced cross-threading risks, while the fully threaded shank offers consistent clamping force across the entire 1" length. By complying with ASME B18.6.3, these screws deliver reliable dimensional accuracy and performance, minimizing downtime and maintenance costs in industrial applications.

Specification Summary & Compliance

This screw features a 4-40 UNC coarse thread with Class 2A thread fit for standard tolerance and easy assembly. It is manufactured in accordance with ASME B18.6.3 specifications and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and suitability for global industrial markets.