S-99553A183 6-32 x 3/8" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel construction, ideal for harsh chemical and marine environments
• Exceptional thread engagement due to Class 3A fit, ensuring reliable, vibration-resistant fastening in precision assemblies
• High mechanical strength from Rockwell B80 hardness, providing excellent durability and resistance to wear
• Secure, flush installation with headless oval tip design, preventing protrusion and allowing for smooth surface finishes
• Efficient installation and removal using a 1/16" hex drive, enabling quick servicing with standard tools
• Wide compatibility with 6-32 UNC coarse threads, offering robust holding power for general industrial applications
• Regulatory peace of mind with compliance to RoHS 3 and REACH, meeting strict environmental and safety standards

Professional Applications & Engineering Value

This 6-32 UNC set screw in 316 Stainless Steel is engineered to address common industrial challenges such as component slippage, corrosion-induced failure, and assembly inefficiency. Its headless design with an oval tip ensures a secure, flush fit that minimizes stress concentration and prevents loosening under vibration, making it ideal for machinery, precision instruments, and automotive components. The coarse UNC thread and Class 3A thread fit provide superior grip in softer materials or where repeated adjustments are needed, while the hex drive allows for straightforward installation in confined spaces. By combining chemical resistance with high Rockwell B80 hardness, this screw delivers long-term reliability in demanding environments, reducing maintenance costs and downtime.

Specification Summary & Compliance

This set screw adheres to precise dimensional standards, including a Class 3A thread fit for tight tolerances and consistent performance. It conforms to ASME B18.3 specifications, ensuring interoperability and quality in industrial fastening. The product is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), affirming its safety for use in regulated markets without hazardous substances.