S-93705A546 1/4"-20 x 1 1/2" 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
• Superior corrosion resistance from 18-8 Stainless Steel construction ensures longevity in harsh environments
• Precise thread engagement with Class 3A fit provides reliable, secure fastening in critical applications
• High-strength performance with 70,000 PSI tensile strength withstands extreme mechanical stresses
• Temperature stability maintains locking integrity across -70°F to 250°F operating range
• Optimized drive efficiency with 3/16" hex socket for high-torque installation without stripping
• Industry compliance meets ASME B18.3 standards for dimensional reliability

Professional Applications & Engineering Value

These 18-8 Stainless Steel socket head cap screws deliver critical vibration resistance in demanding applications through their integrated Nylon Patch thread locking technology. The UNC coarse thread design ensures rapid installation and superior holding power in machinery, automotive assemblies, and industrial equipment where shock and vibration are constant challenges. Engineered with Class 3A thread fit precision, these fasteners eliminate play in high-tolerance applications while the partially threaded configuration provides optimal clamp load distribution. The combination of 70,000 PSI tensile strength and temperature-resistant locking patch makes these screws ideal for applications subjected to both mechanical stress and thermal cycling.

Specification Summary & Compliance

Manufactured to ASME B18.3 specifications with Class 3A thread fit for precision engagement. Features 1/4"-20 UNC coarse threads with 1-1/2" length and 3/16" hex drive. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for industrial use.