S-96209A213 4-40 x 1/2" ASME B18.3 Super-Corrosion-Resistant 316 Stainless Steel Thread-Locking Socket Head Screws
Super-Corrosion-Resistant 316 Stainless Steel Thread-Locking Socket Head Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior corrosion resistance with 316 stainless steel construction, ideal for harsh environments and chemical exposure
- Vibration-resistant locking provided by the nylon patch, preventing loosening in dynamic applications from -70° to 250°F
- High-strength performance with 70,000 psi tensile strength and Rockwell B70 hardness for demanding mechanical loads
- Precise thread engagement with Class 3A fit, ensuring reliable fastening and reduced risk of cross-threading
- Easy installation and removal using a standard 3/32" hex key, compatible with common tooling
- Versatile coarse UNC threading on a 4-40 fully threaded shaft for quick assembly and strong holding power
- Regulatory compliance assurance meeting ASME B18.3, RoHS, and REACH standards for quality and environmental safety
Professional Applications & Engineering Value
This 316 stainless steel socket head cap screw is engineered to address critical challenges in industrial and marine environments where corrosion resistance and vibration resistance are paramount. The nylon patch locking feature provides consistent clamping force, eliminating the need for secondary locking devices in machinery, automotive assemblies, and electronic enclosures. Its Class 3A thread fit and coarse UNC threading ensure rapid installation with high pull-out strength, while the fully threaded design offers flexibility in adjustment. With a temperature range of -70° to 250°F, it performs reliably in thermal cycling conditions, making it an ideal fastener for OEM and MRO applications requiring durability and compliance with international standards.
Specification Summary & Compliance
This socket head cap screw features a 4-40 UNC thread with Class 3A precision fit and coarse thread spacing, manufactured to ASME B18.3 specifications. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to environmental and safety standards. The screw is fully threaded with a right-hand thread direction and includes a nylon patch thread locker for enhanced performance.
