S-91773A204 8-32 x 1 3/4" ASME B18.6.3 Stainless Steel Round Head Phillips Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction and passivated finish, ensuring long-term reliability in harsh environments.
• High tensile strength of 100,000 psi provides exceptional load-bearing capacity, reducing the risk of fastener failure in demanding applications.
• Class 2A thread fit ensures smooth assembly and consistent engagement, minimizing cross-threading and improving installation efficiency.
• Fully threaded design offers maximum grip length and uniform clamping force along the entire 1 3/4" length for secure fastening.
• Phillips No. 2 drive allows for efficient torque application with common tools, speeding up assembly while reducing cam-out.
• Coarse UNC threads enable quick installation and better performance in materials where fine threads might strip or fail.
• Compliance with ASME B18.6.3, RoHS 3, and REACH guarantees industry-standard quality and environmental safety for global supply chains.

Professional Applications & Engineering Value

These 8-32 UNC coarse thread screws are engineered to address common industrial challenges such as vibration loosening and material fatigue. The 18-8 stainless steel composition, combined with a passivated finish, provides excellent resistance to oxidation and chemical exposure, making them ideal for outdoor equipment, marine hardware, and food processing machinery. The rounded head design distributes pressure evenly, reducing surface damage while the fully threaded body ensures consistent holding power in sheet metal, plastic assemblies, and structural frameworks. With a Rockwell B100 hardness and precise Class 2A thread fit, these screws deliver reliable performance in high-stress environments, minimizing maintenance needs and downtime.

Specification Summary & Compliance

This product adheres to Class 2A thread fit tolerances per UNC standards, ensuring dimensional accuracy and interchangeability. Manufacturing follows ASME B18.6.3 specifications for consistent quality. The screws are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming they are free of hazardous substances and suitable for use in regulated industries worldwide.