S-90696A172 5-44 x 3/8" ASME B18.3 18-8 Stainless Steel Socket Head Screws
18-8 Stainless Steel 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 18-8 stainless steel construction, ideal for harsh environments and long-term reliability.
- Exceptional thread engagement and vibration resistance due to the Class 3A fine UNF thread fit, ensuring secure fastening in precision assemblies.
- High mechanical strength with a 70,000 psi tensile strength and Rockwell B70 hardness for demanding applications.
- Reliable and consistent installation using a standard hex socket drive (3/32"), providing a secure grip and reducing the risk of tool slippage.
- Full thread coverage along the 3/8" length for maximum grip and adjustability in a wide range of material thicknesses.
- Guaranteed dimensional accuracy and interchangeability as it meets the stringent ASME B18.3 specification.
- Safe for use in regulated industries with compliance to RoHS 3 and REACH environmental directives.
Professional Applications & Engineering Value
This 18-8 stainless steel socket head cap screw is engineered to solve critical challenges in precision machinery, aerospace, and automotive assemblies. The Class 3A UNF fine thread provides a tighter tolerance fit compared to coarse threads, significantly reducing the risk of loosening under vibration—a common failure point in dynamic systems. The combination of high tensile strength (70,000 psi) and excellent corrosion resistance ensures long-term structural integrity, even in demanding environments. Its socket head design with a hex drive allows for high torque application in confined spaces, making it an indispensable precision industrial fastener for engineers who prioritize reliability and performance in their designs.
Specification Summary & Compliance
This fastener features a 5-44 UNF fine thread with a Class 3A fit, ensuring precise thread engagement and dimensional accuracy. It is manufactured in compliance with the ASME B18.3 standard. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting the latest environmental and safety regulations for hazardous substances.
