S-95198A705 1/4"-20 x 1/2" ASME B18.3, DIN 912, ISO 4762 Sealing Socket Head Screws
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
- Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh industrial environments.
- Reliable high-pressure sealing up to 1500 psi, thanks to the integrated silicone rubber O-ring, preventing leaks in critical applications.
- Exceptional mechanical strength with 100,000 psi tensile strength and Rockwell B85 hardness for long-lasting, secure fastening under heavy loads.
- Precise thread engagement with Class 3A UNC coarse threads, ensuring easy assembly and a tight, vibration-resistant fit.
- Wide temperature tolerance from -80° to 400° F, maintaining performance in extreme thermal conditions.
- Easy installation and removal using a standard 3/16" hex key, reducing assembly time and tooling requirements.
- Full thread coverage along the 1/2" length for maximum grip and uniform stress distribution.
Professional Applications & Engineering Value
This socket head cap screw is engineered to address common industrial challenges such as fluid leakage, vibration loosening, and material degradation. The 18-8 Stainless Steel provides excellent corrosion resistance, making it suitable for chemical processing, marine, and food-grade equipment. The UNC coarse thread and Class 3A fit offer quick assembly and reliable performance in high-vibration environments. Integrated with a silicone rubber O-ring, it effectively seals against oils, water, and gases up to 1500 psi, eliminating the need for additional sealing components. This makes it an ideal choice for hydraulic systems, pumps, and compressors where durability and leak-proof performance are critical.
Specification Summary & Compliance
This screw features a 1/4"-20 UNC coarse thread with Class 3A precision fit for accurate and secure fastening. It is fully threaded with a length of 1/2" and complies with ASME B18.3, DIN 912, and ISO 4762 standards. The product is also RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, ensuring it meets stringent environmental and safety regulations for industrial use.
