S-95198A502 10-32 x 1 1/2" ASME B18.3, DIN 912, ISO 4762 Sealing Socket Head Screws

Key Features & Benefits at a Glance

• Superior Sealing Performance: Integrated Viton® fluoroelastomer O-ring ensures a reliable seal, preventing leaks in high-pressure applications up to 1500 psi and across a wide temperature range from -20° to 400° F.
• Exceptional Corrosion Resistance: Constructed from 18-8 Stainless Steel, offering excellent durability and resistance to rust and corrosion in harsh industrial environments.
• High Tensile Strength & Durability: With a 100,000 psi tensile strength and Rockwell B85 hardness, this screw provides reliable, long-lasting fastening under significant mechanical stress.
• Precision Thread Fit for Secure Fastening: Features a Class 3A thread fit and 10-32 UNF fine thread, ensuring tight, secure connections with minimal risk of loosening in vibrating machinery.
• Optimized for Professional Use: The 5/32" hex drive and standard socket head allow for easy installation with common tools, even in confined spaces.
• Versatile Partial Threading: The partially threaded design with a minimum thread length of 7/8" provides flexibility for applications requiring precise clamping force and unthreaded shank benefits.
• Globally Recognized Compliance: Manufactured to meet ASME B18.3, DIN 912, and ISO 4762 standards, ensuring interchangeability and quality, while also being RoHS 3 and REACH compliant for safe, regulated use.

Professional Applications & Engineering Value

This socket head cap screw is engineered to solve critical sealing and fastening challenges in demanding industrial settings. The combination of 18-8 stainless steel and a Viton® O-ring makes it ideal for applications in hydraulic systems, pneumatic equipment, and chemical processing, where exposure to high pressure (up to 1500 psi) and extreme temperatures (from -20° to 400° F) is common. The fine UNF thread and Class 3A fit provide a vibration-resistant, leak-proof seal, preventing system failures and reducing maintenance downtime. Its partially threaded design ensures optimal grip and load distribution, making it a reliable choice for OEM assemblies and MRO operations that require durable, high-performance sealing fasteners.

Specification Summary & Compliance

This screw adheres to precise dimensional standards with a Class 3A thread fit and UNF fine thread specification, ensuring high accuracy and compatibility. It conforms to major international standards, including ASME B18.3, DIN 912, and ISO 4762. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing it is free from hazardous substances and safe for use in regulated industries.