S-92185A337 1/4"-28 x 1 3/8" Super-Corrosion-Resistant 316 Stainless Steel Socket Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction and passivated finish, ideal for harsh marine and chemical environments
• Exceptional tensile strength of 70,000 psi ensures reliable performance under high-stress industrial applications
• Precise Class 3A thread fit provides tighter tolerances for secure fastening and vibration resistance in critical assemblies
• Fine UNF thread spacing offers improved load distribution and reduced risk of loosening in dynamic operating conditions
• Partially threaded design allows for optimal clamping force control and easier alignment in precision machinery
• Standard hex socket drive with 3/16" size enables high-torque installation and removal in confined spaces
• Full regulatory compliance with RoHS 3 and REACH standards ensures environmental safety and global market acceptance

Professional Applications & Engineering Value

Engineered to address critical challenges in demanding industrial environments, this 316 stainless steel socket head cap screw delivers exceptional performance where corrosion resistance and mechanical reliability are paramount. The combination of UNF fine threads with Class 3A fit provides superior vibration resistance in machinery subjected to continuous operation, while the passivated finish significantly enhances protection against chemical exposure and saltwater corrosion. These industrial fasteners are particularly valuable in marine equipment, chemical processing systems, and food processing machinery where both strength and environmental compatibility are essential. The partially threaded configuration allows engineers to precisely control clamping forces in critical assemblies, reducing stress concentration and improving joint integrity.

Specification Summary & Compliance

This socket head cap screw maintains Class 3A thread fit per UNF standards with precise 1/4"-28 fine thread spacing and minimum thread length of 1". Manufactured from 316 stainless steel with Rockwell B70 hardness, the fastener achieves 70,000 psi tensile strength for high-performance applications. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance for global industrial markets.