S-91205A152 6-32 x 7/8" ASME B18.3, ASTM A574 Alloy Steel Thread-Locking Socket Head Screws

Key Features & Benefits at a Glance

• Vibration-resistant locking with nylon patch thread locker prevents loosening in high-stress environments
• Exceptional tensile strength of 170,000 psi ensures reliable performance under extreme mechanical loads
• Corrosion-resistant black-oxide coating on alloy steel provides durable protection in harsh operating conditions
• Precision Class 3A thread fit delivers superior engagement and consistent clamping force
• Wide temperature tolerance (-70° to 250°F) maintains performance across diverse industrial environments
• Hex socket drive design enables high-torque installation and removal in confined spaces
• Fully threaded construction allows for maximum adjustability and uniform load distribution

Professional Applications & Engineering Value

These socket head cap screws with 6-32 UNC coarse threading and nylon patch thread locker address critical vibration-induced failure points in industrial assemblies. The black-oxide alloy steel construction combines 170,000 psi tensile strength with corrosion resistance, making these fasteners ideal for machinery, automotive, and heavy equipment applications where reliability is paramount. The Class 3A thread fit ensures precise engagement in tapped holes, reducing the risk of cross-threading while maintaining consistent preload. With temperature stability from -70° to 250°F, these fully threaded screws provide secure fastening solutions for environments experiencing thermal cycling or extreme operating conditions.

Specification Summary & Compliance

Manufactured to ASME B18.3 specifications with Class 3A thread fit and UNC coarse thread spacing. These socket head cap screws meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance standards. The black-oxide alloy steel construction provides Rockwell C37 hardness and 170,000 psi tensile strength, ensuring consistent performance in demanding industrial applications.