S-93705A581 5/16"-18 x 3/4" ASME B18.3 18-8 Stainless Steel Thread-Locking Socket Head Screws

Key Features & Benefits at a Glance

• Vibration-resistant locking with nylon patch thread locker prevents loosening in dynamic applications
• Superior corrosion resistance from 18-8 stainless steel construction ensures longevity in harsh environments
• Precision Class 3A thread fit provides consistent engagement and reliable clamping force
• High tensile strength (70,000 psi) withstands extreme mechanical loads in demanding assemblies
• Wide temperature tolerance (-70° to 250°F) maintains performance across diverse operating conditions
• Standard hex drive compatibility enables efficient installation with common 1/4" tools
• Full thread engagement along the entire 3/4" length offers maximum fastening flexibility

Professional Applications & Engineering Value

These 18-8 stainless steel socket head cap screws deliver critical vibration resistance through their integrated nylon patch thread locker, solving common industrial challenges where machinery vibration compromises fastener integrity. The coarse UNC thread profile combined with precision Class 3A fit ensures rapid assembly while maintaining exceptional clamping force in heavy-duty equipment, automotive components, and industrial machinery. With Rockwell B70 hardness and corrosion-resistant properties, these fasteners provide long-term reliability in manufacturing environments where exposure to moisture, chemicals, or temperature fluctuations would degrade inferior alternatives. The fully threaded design allows for adjustable positioning while the standardized hex drive socket facilitates installation in confined spaces common in precision engineering applications.

Specification Summary & Compliance

Manufactured to exacting ASME B18.3 specifications with precision Class 3A thread fit for superior dimensional accuracy. These 5/16"-18 UNC coarse thread fasteners feature complete compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. The fully threaded construction and standardized socket head profile ensure interchangeability and reliable performance across industrial applications requiring consistent fastener quality and regulatory adherence.