S-92185A889 7/8"-9 x 4" Super-Corrosion-Resistant 316 Stainless Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 316 Stainless Steel construction, ideal for harsh chemical and marine environments
• High tensile strength of 70,000 psi ensures reliable performance under heavy loads and vibration
• Precise Class 3A thread fit provides superior engagement and reduces the risk of cross-threading during installation
• Passivated finish enhances surface durability and provides additional protection against oxidation
• Partially threaded design allows for secure clamping while minimizing thread damage in non-threaded sections
• 3/4" hex drive offers high torque transmission for efficient installation and removal with standard tools
• Compliance with RoHS 3 and REACH regulations ensures environmental safety and global market acceptability

Professional Applications & Engineering Value

This 316 Stainless Steel Socket Head Cap Screw delivers critical performance in demanding industrial settings where corrosion resistance and mechanical strength are paramount. The UNC coarse thread with Class 3A fit ensures rapid assembly and reliable clamping force in heavy machinery, structural frameworks, and processing equipment. The passivated finish significantly extends service life in aggressive environments, including chemical plants, marine applications, and food processing facilities. With a Rockwell B70 hardness and 70,000 psi tensile strength, it maintains integrity under sustained stress and vibration, reducing maintenance frequency and downtime. The partially threaded configuration provides optimal grip length while protecting unthreaded sections, making it ideal for precision alignment in construction and manufacturing assemblies.

Specification Summary & Compliance

This fastener adheres to UNC thread standards with a precise Class 3A thread fit for superior dimensional accuracy. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance requirements, ensuring it is free from hazardous substances. Manufactured to inch system specifications, it features a coarse thread spacing and partial threading from a minimum of 2 1/4" on a 4" length, providing reliable performance in accordance with industrial fastener standards.