S-91771A624 3/8"-16 x 1" ASME B18.6.3 Stainless Steel Phillips Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with passivated 18-8 stainless steel construction, ideal for harsh industrial environments.
• Exceptional mechanical strength with 80,000 PSI tensile strength and Rockwell B80 hardness for reliable, heavy-duty fastening.
• Precise thread engagement through Class 2A UNC coarse threads, ensuring easy installation and secure fit.
• Efficient installation and flush finish with Phillips No. 4 drive and standard 82° countersink angle.
• Full threading along the 1" length provides maximum grip and uniform load distribution.
• Compliance with ASME B18.6.3 standards guarantees dimensional accuracy and interchangeability.
• Environmentally safe with RoHS 3 and REACH compliance, meeting global regulatory requirements.

Professional Applications & Engineering Value

These 3/8"-16 UNC flat head screws are engineered to address critical challenges in industrial assembly, such as vibration resistance and material degradation. The passivated 18-8 stainless steel offers excellent durability against moisture and chemicals, reducing maintenance costs in machinery, automotive, and construction applications. The coarse UNC thread and Class 2A fit enable quick, reliable fastening even in materials prone to stripping, while the flat head design with 82° countersink ensures a smooth, flush surface for safety and aesthetics. Fully threaded for enhanced holding power, these screws provide long-term reliability in heavy-duty fastening scenarios, supported by adherence to ASME B18.6.3 specifications for consistent performance.

Specification Summary & Compliance

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