S-92185A564 1/4"-28 x 1" 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 chemical and marine environments
• Precise thread engagement through Class 3A UNF fine threads ensuring reliable, vibration-resistant connections in critical assemblies
• High tensile strength rated at 70,000 PSI for dependable performance under heavy mechanical loads and stress
• Optimized drive stability with standard hex socket and 3/16" drive size preventing cam-out and enabling high-torque installation
• Enhanced durability with Rockwell B70 hardness maintaining structural integrity and thread form under repeated use
• Full thread coverage along the 1" length providing maximum grip and adjustment flexibility in assembled components
• Regulatory compliance with RoHS 3 and REACH standards ensuring environmental safety and material traceability

Professional Applications & Engineering Value

This 316 stainless steel socket head cap screw delivers critical performance in demanding applications where corrosion resistance and mechanical reliability are paramount. The passivated finish significantly enhances surface protection against chlorides, acids, and industrial contaminants, making it suitable for chemical processing equipment, marine hardware, and food-grade machinery. Its Class 3A UNF fine threads provide superior vibration resistance and clamping force retention in precision assemblies, while the hex socket drive allows for compact installation in confined spaces. Engineered to maintain 70,000 PSI tensile strength and Rockwell B70 hardness, this fastener ensures long-term joint integrity under dynamic loads, temperature variations, and corrosive exposure, reducing maintenance frequency and downtime in industrial operations.

Specification Summary & Compliance

Manufactured to inch system dimensions with 1/4"-28 UNF Class 3A fine threads ensuring precise fit and interchangeability. The screw features a standard socket head profile with 3/16" hex drive, 3/8" head diameter, and 1/4" head height. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing restricted substance adherence. The fully threaded design and right-hand thread direction conform to industrial fastener standards for consistent performance across applications.