S-96738A050 1/4"-28 x 1 1/2" ASME B18.3 Vibration-Resistant Sealing Socket Head Screws
Vibration-Resistant Sealing Socket Head Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
Installation & Application
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Key Features & Benefits at a Glance
- Permanent vibration resistance with Nylon patch thread locker, ensuring secure fastening from -70° to 250° F without loosening.
- Superior corrosion resistance thanks to 18-8 stainless steel construction, ideal for harsh industrial environments.
- High tensile strength of 100,000 psi for reliable performance in heavy-duty applications and high-stress assemblies.
- Precise Class 3A thread fit for tighter tolerances and improved engagement, reducing the risk of cross-threading.
- Integrated Buna-N rubber O-ring providing an effective seal against moisture and contaminants up to 225° F.
- Hex socket drive design allows for easy installation in confined spaces with standard tools, enhancing assembly efficiency.
- Compliance with ASME B18.3 and RoHS/REACH standards ensuring quality, safety, and environmental responsibility.
Professional Applications & Engineering Value
This 1/4"-28 UNF socket head cap screw is engineered to address critical challenges in industrial machinery, automotive systems, and precision equipment. The 18-8 stainless steel material offers excellent durability and resistance to rust, while the Nylon patch thread locking technology prevents loosening under vibration, a common issue in dynamic environments. With a fine UNF thread and Class 3A fit, it ensures precise alignment and secure fastening in high-pressure applications up to 1500 psi. The inclusion of a Buna-N rubber O-ring adds a sealing function, protecting components from dust and fluids. Ideal for partially threaded assemblies requiring both clamping and locking, this screw enhances reliability and reduces maintenance needs in demanding settings.
Specification Summary & Compliance
This screw features a 1/4"-28 UNF fine thread with Class 3A thread fit for high precision, a partially threaded design, and a hex drive size of 3/16". It meets ASME B18.3 specifications for dimensional accuracy and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for global industrial use.
