S-93235A116 4-40 x 1" Vented Socket Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh industrial environments and extended service life.
• Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B70 hardness for reliable performance under high-stress loads.
• Precise and secure fastening ensured by the Class 3A thread fit, minimizing the risk of loosening in critical assemblies.
• Efficient assembly and disassembly with a standard hex socket (3/32" drive) and right-hand UNC coarse thread for quick installation.
• Enhanced pressure equalization through the integrated vent (0.035" diameter), preventing pressure buildup in sealed applications.
• Versatile partial threading (3/4" min thread length on a 1" body) provides optimal grip and alignment in a variety of material thicknesses.
• Guaranteed regulatory compliance with RoHS 3 and REACH, ensuring safety and environmental standards are met for global supply chains.

Professional Applications & Engineering Value

This 4-40 UNC Socket Head Cap Screw is engineered to address common challenges in precision machinery, automotive, and aerospace assemblies. The 18-8 Stainless Steel material offers excellent resistance to oxidation and chemical exposure, reducing maintenance needs in corrosive environments. Its Class 3A thread fit and coarse UNC thread provide superior vibration resistance and faster installation compared to fine-thread alternatives, minimizing assembly time. The vented design is critical in applications requiring pressure relief, such as hydraulic systems or enclosed electronic housings, preventing seal failure. With a 1-inch length and partial threading, it offers flexibility for securing components of varying thicknesses without compromising clamp load, making it a reliable choice for OEMs and MRO professionals seeking durability and compliance.

Specification Summary & Compliance

This socket head cap screw adheres to UNC coarse thread standards with a precise Class 3A thread fit for consistent engagement. Manufactured to inch system dimensions, it features a 3/4" minimum thread length and standard socket head profile. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets stringent environmental and safety requirements for industrial use.