S-92210A367 1-72 x 1/8" ASME B18.3 Stainless Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction and passivated finish, ensuring long-term durability in harsh environments.
• Exceptional tensile strength of 70,000 psi provides reliable fastening under high-stress conditions, reducing the risk of mechanical failure.
• Precise Class 3A thread fit guarantees tight, secure connections with minimal backlash for vibration-resistant assemblies.
• Efficient hex drive installation (0.050") allows for high torque application and easy access in confined spaces.
• Optimized flat head design with 82° countersink enables a flush, low-profile finish that enhances aesthetics and safety.
• Full threading ensures maximum grip length and uniform load distribution across the entire fastener.
• Compliance with ASME B18.3, RoHS 3, and REACH assures adherence to strict industrial and environmental standards.

Professional Applications & Engineering Value

These 1-72 UNF flat head screws are engineered to address critical challenges in precision assemblies where space constraints and corrosion resistance are paramount. The 18-8 stainless steel material, combined with a passivated finish, provides excellent protection against oxidation and chemical exposure, making them ideal for electronics, aerospace, and medical device applications. The fine UNF thread and Class 3A fit deliver superior holding power in thin materials, minimizing the risk of stripping. The hex drive ensures secure, slip-resistant installation, while the flat head design allows for seamless integration into countersunk holes, maintaining aerodynamic or aesthetic surfaces. This combination of features ensures reliable performance in demanding industrial fastening scenarios, reducing maintenance needs and enhancing product lifespan.

Specification Summary & Compliance

This screw features a 1-72 UNF fine thread with Class 3A thread fit for high precision and tight tolerances. Manufacturing adheres to ASME B18.3 specifications, ensuring dimensional accuracy and interchangeability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of hazardous substances. Additional specifications include a tensile strength of 70,000 psi, Rockwell B55 hardness, and full threading for consistent performance across applications.