S-98164A303 3/8"-16 x 3/4" ASME B18.3, ASTM F879 Stainless Steel Button Head Hex-Drive Screws
Stainless Steel Button Head Hex-Drive 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 in harsh environments thanks to 316 stainless steel construction with passivated finish
- Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B55 hardness for heavy-duty applications
- Precise thread engagement with Class 3A fit and UNC coarse threading ensuring reliable fastening performance
- Easy installation and removal with 7/32" hex drive and rounded button head design
- Full-threaded 3/4" length provides maximum grip and load distribution across the entire fastener
- Industry-standard compliance with ASME B18.3 specifications for guaranteed dimensional accuracy
- Environmental regulation compliance with RoHS 3 and REACH standards for safe industrial use
Professional Applications & Engineering Value
This 316 stainless steel rounded head screw delivers exceptional performance in demanding industrial environments where corrosion resistance and mechanical reliability are critical. The combination of 70,000 psi tensile strength and Rockwell B55 hardness ensures durability under vibration and heavy loads, while the passivated finish enhances surface protection against chemicals and moisture. The 3/8"-16 UNC coarse threading with Class 3A fit provides superior thread engagement in various materials, reducing the risk of stripping. The rounded button head design with 7/32" hex drive offers both aesthetic appeal and practical installation advantages, making it ideal for machinery, marine equipment, chemical processing, and structural applications where both performance and appearance matter.
Specification Summary & Compliance
This fastener features precision 3/8"-16 UNC coarse threads with Class 3A fit tolerance, ensuring optimal thread engagement and dimensional accuracy. Manufactured to ASME B18.3 specifications with a passivated finish on 316 stainless steel material. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, meeting the latest industry standards for safe and sustainable industrial components.
