S-93615A412 1/4"-20 x 5/8" 18-8 Stainless Steel Low-Profile Socket Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh environments and extended service life.
• High-strength performance with a 70,000 psi tensile strength and Rockwell B70 hardness for reliable load-bearing in demanding applications.
• Precise, secure fastening ensured by the Class 3A thread fit, minimizing the risk of loosening under vibration.
• Space-saving low-profile head provides a flush finish in tight clearance applications without compromising on drive engagement.
• Easy installation and removal with a standard 1/8" hex drive, allowing for high torque application with common tools.
• Versatile coarse UNC thread (1/4"-20) offers quick assembly and is less prone to clogging in industrial settings.
• Compliance with major environmental regulations including RoHS 3 and REACH, ensuring safety and suitability for global markets.

Professional Applications & Engineering Value

This low profile socket head cap screw is engineered to solve critical challenges in machinery, automation, and precision equipment assembly. The 18-8 Stainless Steel material provides excellent resistance to rust and oxidation, making it suitable for washdown environments, outdoor use, and chemical exposure. The Class 3A thread fit and UNC coarse thread design ensure a tight, reliable connection that resists vibrational loosening, a common failure point in dynamic systems. Its low-profile head is crucial for applications where space is constrained, allowing for a sleek, unobtrusive finish without sacrificing the high torque capability of the hex drive. This combination of durability, precision, and compact design delivers long-term reliability and reduces maintenance needs in industrial applications.

Specification Summary & Compliance

This fastener features a 1/4"-20 UNC coarse thread with a Class 3A thread fit for high precision. It is fully threaded and right-hand direction. Manufactured from 18-8 Stainless Steel, it meets a tensile strength of 70,000 psi and Rockwell B70 hardness. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations.