S-90343A132 1/4"-20 x 3/4" ASME B18.3 18-8 Stainless Steel Thread-Locking Socket Head Screws
18-8 Stainless Steel Thread-Locking Socket Head Screws
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Permanent vibration resistance through integrated epoxy thread locker that eliminates loosening in high-stress environments
- Superior corrosion protection with 18-8 stainless steel construction maintaining integrity in harsh conditions
- Maximum load-bearing capacity with 70,000 psi tensile strength for critical structural applications
- Precision thread engagement through Class 3A UNC coarse threads ensuring reliable fastening performance
- Wide temperature tolerance from -60° to 300°F maintaining locking effectiveness across extreme operating conditions
- Quick assembly efficiency with 15-minute initial hardening and hex drive design for streamlined installation
- Industry-standard compliance meeting ASME B18.3 specifications for guaranteed dimensional accuracy and reliability
Professional Applications & Engineering Value
These 18-8 stainless steel socket head cap screws with permanent epoxy thread locker address critical engineering challenges in high-vibration machinery, aerospace assemblies, and industrial equipment where fastener security is paramount. The combination of Class 3A UNC coarse threads and hex drive design ensures precise installation torque transmission while the integrated adhesive system creates a permanent bond that withstands extreme operational stresses. Engineered for applications requiring permanent fastener security, these screws maintain their locking integrity across a broad temperature range from -60° to 300°F, making them ideal for automotive, manufacturing, and heavy equipment applications where thermal cycling and dynamic loads would compromise standard fasteners.
Specification Summary & Compliance
Manufactured to exact ASME B18.3 specifications with Class 3A thread fit precision and UNC coarse thread profile. The 18-8 stainless steel construction provides inherent corrosion resistance while the epoxy thread locker system delivers permanent locking performance with 15-minute initial hardening and 24-hour full strength development. Compliant with industry standards for dimensional accuracy and mechanical properties including 70,000 psi tensile strength and Rockwell B70 hardness.
