S-93705A722 1/4"-28 x 1" ASME B18.3 18-8 Stainless Steel Thread-Locking Socket Head Screws

Key Features & Benefits at a Glance

• Vibration-resistant locking with permanent nylon patch thread locker prevents loosening under dynamic loads, enhancing assembly reliability.
• Superior corrosion resistance from 18-8 stainless steel construction ensures long-term performance in harsh or humid environments.
• High-strength durability with 70,000 psi tensile strength and Rockwell B70 hardness withstands heavy mechanical stress.
• Precise thread engagement via Class 3A fine UNF threads provides a tighter, more secure fit for critical applications.
• Wide temperature tolerance from -70° to 250°F maintains locking integrity across diverse operating conditions.
• Secure hex drive compatibility with 3/16" drive allows for high-torque installation in confined spaces using standard tools.
• Full-threaded design ensures consistent clamping force along the entire 1" length for uniform load distribution.

Professional Applications & Engineering Value

Engineered for demanding industrial settings, these socket head cap screws integrate a nylon patch thread locker to eliminate vibration-induced failures in machinery, automotive, and aerospace assemblies. The 18-8 stainless steel material offers excellent resistance to oxidation and chemicals, reducing maintenance in corrosive environments. With Class 3A fine UNF threads, the screws deliver precise alignment and minimal backlash, crucial for high-precision equipment. The hex socket drive facilitates easy installation in tight spaces, while the robust 70,000 psi tensile strength ensures reliable performance under cyclic loading, making them ideal for permanent fastening in structural and dynamic applications.

Specification Summary & Compliance

This screw features a 1/4"-28 UNF fine thread with Class 3A fit for high precision, manufactured in compliance with ASME B18.3 standards. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safety and sustainability. The specifications include a right-hand thread direction, fully threaded rod type, and adherence to defined dimensional tolerances for consistent quality.