S-92949A870 3/8"-16 x 1 7/8" ASME B18.3, ASTM F879 Stainless Steel Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel and passivated finish for long-lasting performance in harsh environments.
• High tensile strength of 70,000 psi ensures reliable load-bearing capacity and resistance to deformation under stress.
• Precise Class 3A thread fit provides secure, vibration-resistant fastening with minimal risk of loosening.
• Easy installation and removal with a 7/32" hex drive, allowing for high torque application without stripping.
• Fully threaded design offers consistent holding power along the entire 1 7/8" length for versatile applications.
• Compliance with ASME B18.3, RoHS 3, and REACH guarantees adherence to industry standards and environmental safety.
• Rockwell B55 hardness enhances durability and wear resistance, extending the screw's service life.

Professional Applications & Engineering Value

This 3/8"-16 UNC rounded head hex screw is engineered to address critical challenges in industrial assembly, such as corrosion-induced failure and thread wear. Constructed from 18-8 stainless steel with a passivated finish, it provides exceptional resistance to moisture and chemicals, making it ideal for applications in marine, chemical processing, and outdoor equipment. The coarse UNC thread and Class 3A fit ensure quick, secure fastening in materials prone to vibration, reducing maintenance needs. Its button head style offers a low-profile, flush installation, minimizing snagging risks in machinery and structural frameworks. By integrating high tensile strength and standardized dimensions, this screw enhances assembly reliability and efficiency in demanding environments like automotive manufacturing and construction.

Specification Summary & Compliance

This product features precise Class 3A thread fit with UNC coarse threading and a diameter of 0.375", ensuring dimensional accuracy per ASME B18.3 specifications. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming adherence to environmental and safety standards. The manufacturing process follows strict guidelines for 18-8 stainless steel hardness (Rockwell B55) and tensile strength (70,000 psi), providing consistent performance in industrial applications.