S-95198A291 6-32 x 7/8" ASME B18.3, DIN 912, ISO 4762 Sealing Socket Head Screws

Key Features & Benefits at a Glance

• Superior Sealing Performance: Integrated Buna-N rubber O-ring provides reliable sealing up to 1500 psi, preventing leaks in critical fluid and gas systems.
• Exceptional Corrosion Resistance: Made from 18-8 stainless steel, offering excellent durability in harsh environments and resisting rust and chemical degradation.
• High Tensile Strength & Durability: With a tensile strength of 100,000 psi and Rockwell B85 hardness, it ensures long-lasting, secure fastening under high stress.
• Precise Thread Fit for Secure Assembly: Class 3A UNC coarse threads deliver tighter tolerances and superior engagement, reducing the risk of loosening in vibrating applications.
• Wide Temperature Compatibility: O-ring functions effectively from -40°F to 225°F, making it suitable for diverse industrial and outdoor conditions.
• Efficient Hex Drive Installation: Standard hex socket head allows for easy, high-torque installation with common tools, speeding up assembly processes.
• Full Threading for Maximum Grip: Fully threaded design ensures consistent holding power along the entire 7/8" length, ideal for deep or variable material thicknesses.

Professional Applications & Engineering Value

This socket head cap screw is engineered to address common industrial challenges such as fluid leakage, vibration-induced loosening, and corrosion in demanding environments. The 18-8 stainless steel construction provides inherent resistance to oxidation and many chemicals, while the Buna-N rubber O-ring creates a robust seal that withstands pressures up to 1500 psi. Its UNC coarse thread and Class 3A fit ensure precise, reliable fastening in machinery, automotive systems, and hydraulic equipment, reducing maintenance needs and enhancing operational safety. By integrating sealing directly into the fastener, it simplifies assembly and eliminates the need for additional gaskets, offering a cost-effective solution for high-pressure applications in oil & gas, manufacturing, and aerospace sectors.

Specification Summary & Compliance

This screw features a 6-32 UNC coarse thread with Class 3A precision fit, ensuring high dimensional accuracy and reliable performance. It is manufactured in compliance with ASME B18.3, DIN 912, and ISO 4762 standards, guaranteeing interchangeability and quality. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, adhering to environmental and safety regulations for industrial use.