S-96562A917 2-56 x 3/4" ASME B18.6.3 Thread-Locking Stainless Steel Pan Head Phillips Screws

Key Features & Benefits at a Glance

• Vibration-resistant locking with permanent nylon patch that maintains secure fastening in dynamic environments
• Superior corrosion resistance through 18-8 stainless steel construction and passivated surface treatment
• Wide temperature tolerance from -70° to 250°F for reliable performance in extreme conditions
• High-strength durability with 60,000 psi tensile strength and Rockwell B70 hardness for demanding applications
• Precision threading with Class 2A UNC coarse threads ensuring consistent engagement and easy installation
• Optimized drive performance through Phillips No. 1 drive design providing efficient torque transfer
• Industry compliance assurance meeting ASME B18.6.3 standards and environmental regulations

Professional Applications & Engineering Value

These 2-56 UNC nylon patch locking screws deliver exceptional engineering value in industrial settings where vibration loosening and corrosion present significant challenges. The permanent nylon patch thread locker creates consistent friction along the fully threaded surface, preventing unintended backing out in machinery, electronic enclosures, and automotive assemblies. Manufactured from 18-8 stainless steel with a passivated finish, these fasteners resist chemical exposure and atmospheric corrosion, extending service life in harsh environments. The pan head design with Phillips No. 1 drive combines low-profile installation with reliable torque transmission, while the coarse UNC threading ensures rapid assembly in production environments. These characteristics make them ideal for maintenance-critical applications requiring durable, vibration-resistant fastening solutions.

Specification Summary & Compliance

This 3/4" length screw features Class 2A thread fit tolerance with UNC coarse threading (2-56 size) and right-hand thread direction. Manufacturing complies with ASME B18.6.3 specifications for dimensional accuracy and performance. The product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting current environmental regulations for industrial use. The nylon patch locking element operates effectively across the specified temperature range of -70° to 250°F while maintaining consistent locking performance.