S-93615A112 4-40 x 1/2" 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 or humid environments.
• High-strength performance delivering 70,000 psi tensile strength for reliable load-bearing in demanding applications.
• Precise Class 3A thread fit ensures tight, secure fastening with minimal risk of loosening under vibration.
• Low-profile socket head design saves space and allows installation in confined areas with a 0.050" hex drive.
• Excellent durability backed by Rockwell B70 hardness, resisting wear and deformation over time.
• Full threading provides consistent grip along the entire 1/2" length for uniform clamping force.
• Regulatory compliance with RoHS 3 and REACH, ensuring safe use in regulated industries.

Professional Applications & Engineering Value

Engineered for precision and reliability, this 4-40 UNC thread low profile socket head cap screw in 18-8 stainless steel addresses critical needs in industrial and electronic assemblies. Its Class 3A thread fit and coarse thread spacing enable quick, secure fastening in high-vibration settings, reducing maintenance downtime. The low-profile head and compact hex drive facilitate installation in tight spaces, such as machinery enclosures, automotive components, and aerospace systems, where corrosion resistance and 70,000 psi tensile strength are essential for long-term performance. This fastener is ideal for OEMs and MRO professionals seeking durable, compliant solutions that meet stringent industry standards.

Specification Summary & Compliance

This screw features a 4-40 UNC coarse thread with Class 3A precision fit, ensuring dimensional accuracy per inch system standards. It is fully threaded with a right-hand direction and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing environmental and safety adherence for industrial use.