S-90343A123 8-32 x 1" ASME B18.3 18-8 Stainless Steel Thread-Locking Socket Head Screws

Key Features & Benefits at a Glance

• Permanent vibration-resistant locking with epoxy adhesive prevents loosening in high-stress applications
• Exceptional corrosion resistance from 18-8 stainless steel construction for long service life in harsh environments
• Precision Class 3A thread fit ensures smooth installation and reliable engagement with mating components
• High tensile strength rating of 70,000 psi provides structural integrity for demanding mechanical assemblies
• Wide temperature tolerance (-60° to 300°F) maintains performance across extreme operating conditions
• Standard hex socket drive allows for high-torque installation in confined spaces
• ASME B18.3 compliance guarantees dimensional accuracy and interchangeability with industry standards

Professional Applications & Engineering Value

These socket head cap screws with integrated epoxy thread locker solve critical fastening challenges in industrial applications where vibration-induced loosening compromises assembly integrity. The 18-8 stainless steel construction provides excellent corrosion resistance for machinery exposed to moisture, chemicals, or outdoor elements. The UNC coarse thread design with Class 3A fit ensures rapid installation and secure holding power in materials where fine threads might strip. Particularly valuable in permanent assemblies requiring maintenance-free operation, these fasteners begin hardening within 15 minutes and achieve full locking strength within 24 hours, making them ideal for production lines with defined curing schedules. The combination of 70,000 psi tensile strength and Rockwell B70 hardness ensures reliable performance in structural applications across automotive, aerospace, and heavy equipment sectors.

Specification Summary & Compliance

Manufactured to exact ASME B18.3 specifications, these socket head cap screws feature precision UNC 8-32 threads with Class 3A fit for consistent dimensional accuracy. The coarse thread spacing and right-hand thread direction comply with industry standards for compatibility with existing components. The fully threaded design provides maximum engagement length, while the epoxy thread locker delivers permanent locking performance across the specified temperature range. These fasteners meet standard industrial requirements for material composition and mechanical properties.