S-96738A040 1/4"-20 x 3/4" ASME B18.3 Vibration-Resistant Sealing Socket Head Screws

Key Features & Benefits at a Glance

• Vibration-resistant locking with permanent nylon patch that maintains secure fastening in dynamic environments from -70° to 250°F
• Superior corrosion resistance through 18-8 stainless steel construction with Rockwell B85 hardness for extended service life
• High-strength performance delivering 100,000 psi tensile strength for demanding industrial applications
• Precision thread engagement with Class 3A UNC coarse threads ensuring reliable fit and easy assembly
• Optimized drive efficiency featuring hex socket design for high torque application and reduced stripping risk
• Industry compliance assurance meeting ASME B18.3 standards with full RoHS 3 and REACH regulatory compliance
• Versatile pressure handling capable of withstanding up to 1500 psi in various industrial environments

Professional Applications & Engineering Value

Engineered for critical fastening applications where vibration loosening poses significant operational risks, this nylon patch locking socket head cap screw provides permanent thread-locking security without compromising disassembly capability. The 18-8 stainless steel construction ensures excellent corrosion resistance in harsh environments, while the Class 3A thread fit and UNC coarse threads deliver precise engagement and rapid installation in production settings. Ideal for machinery, automotive assemblies, and industrial equipment, this socket head cap screw maintains its locking integrity across a wide temperature range from -70° to 250°F, making it suitable for both extreme cold and high-temperature applications. The combination of 100,000 psi tensile strength and Rockwell B85 hardness ensures reliable performance under heavy loads and repeated stress cycles.

Specification Summary & Compliance

This 1/4"-20 x 3/4" socket head cap screw features precision UNC coarse threads with Class 3A fit for superior thread engagement and meets ASME B18.3 manufacturing specifications. The fastener is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industries. With a maximum pressure rating of 1500 psi and designed for holes up to 0.265" diameter, this locking screw delivers reliable performance in precision engineering applications.