S-91772A883 3/8"-16 x 3 1/2" ASME B18.6.3 Stainless Steel Pan Head Phillips Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with passivated 18-8 stainless steel construction, ideal for harsh environments and extended service life.
• Exceptional holding power from fully threaded UNC coarse spacing, ensuring reliable fastening in demanding applications.
• High tensile strength of 70,000 psi provides dependable performance under heavy loads and mechanical stress.
• Easy installation and removal with the No. 4 Phillips drive, reducing assembly time and tool wear.
• Precise dimensional accuracy with Class 2A thread fit for consistent engagement and reduced cross-threading risks.
• Broad compliance with industry standards including ASME B18.6.3, RoHS, and REACH, ensuring safety and regulatory adherence.
• Versatile pan head design offers a low-profile, rounded finish for secure seating and aesthetic appeal.

Professional Applications & Engineering Value

Engineered for industrial and construction settings, these passivated 18-8 stainless steel pan head screws address common challenges like corrosion, vibration loosening, and high-stress fatigue. The UNC coarse thread and fully threaded design enhance grip in materials such as metal, wood, and composites, minimizing pull-out in dynamic loads. With a Phillips drive for efficient torque application and a rounded head profile that distributes pressure evenly, they are ideal for machinery, automotive assemblies, and outdoor structures where durability and RoHS/REACH compliance are critical. This combination ensures long-term reliability, reducing maintenance costs and downtime in industrial applications.

Specification Summary & Compliance

This screw features a 3/8"-16 UNC thread with Class 2A fit for precise dimensional tolerance, and is manufactured to meet ASME B18.6.3 specifications. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material integrity.