S-93190A644 3/8"-16 x 4 1/2" ASME B18.2.1 Super-Corrosion-Resistant 316 Stainless Steel Hex Head Screws
Super-Corrosion-Resistant 316 Stainless Steel Hex 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 from 316 stainless steel construction, ideal for harsh environments and chemical exposure
- Exceptional mechanical strength with 70,000 PSI tensile strength and Rockwell B70 hardness for reliable load-bearing performance
- Easy installation and removal with external hex drive and coarse UNC threading that resists cross-threading
- Precise thread fit with Class 2A tolerance ensuring consistent engagement and vibration resistance
- Full threading along 4-1/2" length provides maximum grip range and flexibility in material thickness
- Compliance with industry standards including ASME B18.2.1 for dimensional accuracy and reliability
- Environmental regulation compliance with RoHS 3 and REACH, making them suitable for regulated industries
Professional Applications & Engineering Value
This 3/8"-16 UNC hex head screw in 316 stainless steel delivers critical engineering value where corrosion resistance and structural integrity are paramount. The combination of 70,000 PSI tensile strength and Rockwell B70 hardness ensures reliable performance in heavy-duty applications such as marine equipment, chemical processing plants, and offshore structures. The coarse UNC threading with Class 2A fit provides excellent engagement in various materials while resisting vibration-induced loosening. With full threading along its 4-1/2" length, this external hex drive fastener offers versatile clamping capability across different material thicknesses, making it an ideal solution for structural assemblies, machinery frames, and industrial equipment requiring long-term durability in corrosive environments.
Specification Summary & Compliance
This hex head screw features precise Class 2A thread fit with 3/8"-16 UNC coarse threading and right-hand thread direction. Manufacturing conforms to ASME B18.2.1 specifications for dimensional accuracy. The fastener is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring suitability for applications with strict material restrictions.
