S-91205A150 6-32 x 5/8" 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 applications from -70° to 250°F
• Exceptional tensile strength of 170,000 psi ensures reliable performance in heavy-duty industrial environments
• Precise Class 3A thread fit provides superior engagement and consistent clamping force in critical assemblies
• Black-oxide alloy steel construction offers enhanced corrosion resistance and durability in demanding conditions
• Standard hex drive design allows for easy installation and removal with common tools while maintaining flush mounting
• Full threading capability enables maximum adjustability and secure fastening throughout the entire screw length
• Rockwell C37 hardness rating ensures excellent wear resistance and long-term performance reliability

Professional Applications & Engineering Value

These black-oxide alloy steel socket head cap screws with nylon patch thread locking technology solve critical vibration-induced loosening problems in industrial machinery, automotive assemblies, and precision equipment. The UNC coarse thread configuration with Class 3A fit ensures rapid installation and reliable performance in high-vibration environments where maintaining clamp load is essential. Engineered for applications requiring 170,000 psi tensile strength, these screws provide secure fastening in temperature ranges from -70° to 250°F, making them ideal for outdoor equipment, manufacturing machinery, and automotive components where thermal cycling and mechanical stress are constant challenges. The combination of alloy steel material and specialized surface treatment delivers optimal performance in demanding industrial settings.

Specification Summary & Compliance

This 6-32 x 5/8" socket head cap screw features precise Class 3A thread fit with UNC coarse thread specifications and fully threaded design. Manufactured to ASME B18.3 standards with material compliance to ASTM A574, ensuring consistent quality and performance. The product meets RoHS 3 (2015/863/EU) compliance for hazardous substance restrictions and REACH (EC 1907/2006) regulations for chemical safety, providing assurance for global industrial applications and environmental responsibility.