S-91412A470 3/8"-16 x 1 1/2" Stainless Steel Thread-Locking Hex Head Screws

Key Features & Benefits at a Glance

• Permanent vibration resistance with nylon patch thread locking that maintains secure fastening in high-stress environments
• Superior corrosion resistance thanks to 18-8 stainless steel construction for long-lasting performance in harsh conditions
• High-strength reliability with 70,000 PSI tensile strength and Rockwell B70 hardness for demanding industrial applications
• Wide temperature tolerance from -55° to 250°F, ensuring consistent performance across extreme operating conditions
• Secure partial threading design provides optimal grip and prevents loosening under vibration and dynamic loads
• Easy installation and removal with standard external hex drive for efficient maintenance and assembly operations
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for global industrial applications

Professional Applications & Engineering Value

These 3/8"-16 UNC nylon patch hex head screws deliver critical vibration resistance where conventional fasteners fail. The 18-8 stainless steel construction provides exceptional corrosion resistance, making them ideal for chemical processing, marine equipment, and outdoor industrial applications. The nylon patch thread locking technology creates a permanent locking mechanism that eliminates the need for additional locking hardware, reducing assembly time and maintenance costs. With coarse UNC threading and partial threading design, these screws offer superior holding power in machinery, structural frameworks, and heavy equipment where vibration-induced loosening compromises safety and performance. The combination of high tensile strength and temperature stability ensures reliable operation in automotive, aerospace, and manufacturing environments where fastener failure is not an option.

Specification Summary & Compliance

Manufactured to precise Class 2A thread fit standards with UNC coarse threading (3/8"-16) and partial threading configuration. These external hex drive screws feature a 1-1/2" length with 1" minimum thread length. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance for global industrial applications. The manufacturing process adheres to strict quality controls for dimensional accuracy and performance consistency.