S-94622A243 1/2"-20 x 1 19/32" AN8-14 Cotter Pin-Lockable Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with cadmium plating for extended service life in harsh industrial environments
• Exceptional mechanical strength with 120,000 psi tensile strength and Rockwell C26 hardness for heavy-duty applications
• Precision thread engagement with Class 3A fit ensuring reliable, vibration-resistant connections
• Secure locking mechanism featuring cotter pin compatibility for critical safety applications
• Optimized torque transmission through external hex drive design for efficient installation
• Fine thread spacing providing enhanced clamping force and superior load distribution
• AN8-14 compliance guaranteeing consistent quality and performance in aerospace and defense applications

Professional Applications & Engineering Value

This cadmium-plated steel hex head screw delivers exceptional performance in demanding environments where vibration resistance and mechanical integrity are paramount. The 1/2"-20 UNF fine threading with Class 3A precision fit ensures minimal backlash and superior clamping force, making it ideal for aerospace assemblies, heavy machinery, and structural applications. The integrated cotter pin locking mechanism provides failsafe security against loosening under dynamic loads, while the external hex drive facilitates quick installation with standard tools. Engineered to withstand extreme conditions, this fastener maintains its 120,000 psi tensile strength and corrosion resistance throughout its service life, reducing maintenance frequency and downtime in critical operations.

Specification Summary & Compliance

This high-performance fastener features Class 3A thread fit precision with 1/2"-20 UNF fine threading and partial threading configuration. Manufactured from cadmium-plated steel with Rockwell C26 hardness and 120,000 psi tensile strength. Complies with AN8-14 specifications for aerospace and defense applications, featuring right-hand thread orientation and 3/32" cotter pin compatibility. The product meets industry standards for dimensional accuracy and mechanical performance in critical fastening applications.