S-95198A256 1-64 x 1/4" ASME B18.3, DIN 912, ISO 4762 Sealing Socket Head Screws

Key Features & Benefits at a Glance

• Superior sealing performance with Buna-N rubber O-rings, rated for up to 1500 psi pressure and temperatures from -40° to 225° F, preventing leaks in demanding environments.
• Exceptional corrosion resistance from 18-8 stainless steel construction, ensuring long-term durability and reliability in harsh industrial settings.
• High tensile strength of 100,000 psi and Rockwell B85 hardness for reliable load-bearing and resistance to deformation under stress.
• Precise Class 3A thread fit with coarse UNC threading for easy installation, secure fastening, and reduced risk of cross-threading.
• Versatile compatibility with ASME B18.3, DIN 912, and ISO 4762 standards, ensuring interchangeability and quality in global engineering projects.
• Fully threaded design for consistent grip along the entire 1/4" length, providing uniform clamping force in sealing applications.
• Environmental and safety compliance with RoHS 3 and REACH regulations, making them suitable for regulated industries without harmful substances.

Professional Applications & Engineering Value

This socket head cap screw with a 1-64 UNC thread and Buna-N O-ring seal is engineered to address critical sealing challenges in high-pressure and variable temperature environments. Made from 18-8 stainless steel, it resists corrosion and maintains integrity in applications like hydraulic systems, pneumatic equipment, and machinery where fluid or gas containment is essential. The Class 3A thread fit and coarse thread spacing ensure quick, reliable assembly, reducing downtime and preventing leaks up to 1500 psi. Ideal for OEM and maintenance uses, this screw combines robust tensile strength and standardized dimensions (e.g., ASME B18.3) to deliver consistent performance in automotive, aerospace, and industrial sealing tasks, enhancing operational safety and efficiency.

Specification Summary & Compliance

This screw features precise Class 3A thread fit per UNC standards, with a thread size of 1-64 and coarse spacing for optimal engagement. It complies with ASME B18.3, DIN 912, and ISO 4762 manufacturing specifications, ensuring dimensional accuracy and reliability. Additionally, it meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, confirming it is free from restricted substances for safe use in various industries.