S-90608A324 1/4"-20 x 1 1/2" ASME B18.3, DIN 912, ISO 4762 Sealing Socket Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel construction, ideal for harsh chemical and marine environments.
• Reliable high-pressure sealing up to 1500 psi, thanks to the integrated Buna-N Rubber O-Ring that prevents leaks in fluid and gas systems.
• Exceptional mechanical strength with 100,000 psi tensile strength and Rockwell B85 hardness, ensuring durability under heavy loads and vibration.
• Precise thread engagement with Class 3A fit and UNC coarse threading, providing secure fastening and reduced risk of cross-threading in industrial assemblies.
• Wide temperature tolerance from -40° to 225°F, maintaining performance in extreme thermal conditions without degradation.
• Easy installation and high torque capability using a standard 3/16" hex drive, allowing for efficient assembly in confined spaces.
• Full thread coverage along the 1 1/2" length, offering consistent clamping force and versatility in various material thicknesses.

Professional Applications & Engineering Value

This 316 Stainless Steel Socket Head Cap Screw is engineered to address critical challenges in sealing applications and high-stress environments. The combination of UNC coarse threads and Class 3A fit ensures rapid, reliable assembly with minimal risk of thread stripping, while the Buna-N Rubber O-Ring provides an effective seal against fluids and gases up to 1500 psi. Commonly used in pump systems, hydraulic equipment, and machinery enclosures, this screw’s fully threaded design and hex socket drive facilitate secure fastening in hard-to-reach areas, reducing maintenance downtime and enhancing operational safety in demanding industrial settings.

Specification Summary & Compliance

This screw adheres to precise Class 3A thread fit and UNC coarse thread spacing for consistent dimensional accuracy. It meets ASME B18.3, DIN 912, and ISO 4762 manufacturing standards, ensuring interchangeability and reliability. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, it is free from hazardous substances, supporting environmentally responsible procurement and use in global markets.