S-95198A710 1/4"-20 x 5/8" ASME B18.3, DIN 912, ISO 4762 Sealing Socket Head Screws

Key Features & Benefits at a Glance

• Superior Sealing Performance: Integrated silicone rubber O-ring ensures reliable leak-proof sealing in demanding applications, protecting against fluid and gas ingress.
• Exceptional Corrosion Resistance: Crafted from 18-8 Stainless Steel, this screw offers excellent durability and resistance to rust and corrosion in harsh environments.
• High Tensile Strength & Pressure Handling: With a 100,000 psi tensile strength and ability to withstand up to 1500 psi pressure, it provides robust, reliable fastening for high-stress assemblies.
• Precision Thread Fit for Secure Assembly: Class 3A thread fit with UNC coarse threads ensures tight, secure engagement and reduces the risk of stripping or loosening under vibration.
• Wide Temperature Tolerance: The silicone O-ring maintains sealing integrity across a broad temperature range from -80° to 400° F, suitable for extreme operating conditions.
• Easy Installation with Hex Drive: The standard socket head with 3/16" hex drive allows for straightforward installation and high torque application using common Allen keys.
• Broad Industry Compliance: Meets ASME B18.3, DIN 912, and ISO 4762 standards, ensuring interchangeability and reliability in global engineering applications.

Professional Applications & Engineering Value

This 1/4"-20 UNC Socket Head Cap Screw is engineered to solve critical challenges in industrial fastening and sealing applications. The combination of 18-8 Stainless Steel material and a fully threaded design with Class 3A fit provides high clamping force and vibration resistance, essential for machinery, automotive, and hydraulic systems. The integrated silicone rubber O-ring offers a dependable seal, preventing leaks in pressurized systems up to 1500 psi, while operating reliably in temperatures from -80° to 400° F. Its coarse UNC threads facilitate quick assembly and disassembly, reducing downtime in maintenance-heavy environments. Ideal for use in pumps, valves, and enclosures where high-strength and sealing integrity are paramount, this fastener ensures long-term performance and safety.

Specification Summary & Compliance

This socket head cap screw features a 1/4"-20 UNC thread with Class 3A thread fit, ensuring precise dimensional accuracy and reliable engagement. It is manufactured in compliance with ASME B18.3, DIN 912, and ISO 4762 standards, guaranteeing consistency and quality. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting environmental and safety regulations for use in various markets.