S-92949A639 3/8"-16 x 3 1/2" ASME B18.3 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 with 18-8 Stainless Steel and passivated finish for long-lasting performance in harsh environments
- Exceptional mechanical strength offering 70,000 psi tensile strength and Rockwell B55 hardness for demanding applications
- Precise Class 3A thread fit ensures reliable engagement and vibration resistance in critical assemblies
- Secure hex drive installation with 7/32" drive size providing positive torque transfer and reduced cam-out risk
- Full threading design delivers maximum grip length and consistent clamping force across the entire fastener
- Standard-compliant manufacturing meeting ASME B18.3 specifications for dimensional accuracy and interchangeability
- Environmental compliance with RoHS 3 and REACH regulations for safe use in regulated industries
Professional Applications & Engineering Value
This 3/8"-16 UNC rounded head screw delivers critical engineering solutions where corrosion resistance and high tensile strength are paramount. The 18-8 Stainless Steel construction with passivated finish provides exceptional protection against oxidation and chemical exposure, making it ideal for marine, food processing, and chemical plant applications. The button head profile offers a low-profile design that minimizes protrusion while the hex drive ensures secure installation in confined spaces. With its Class 3A thread fit and coarse thread spacing, this fastener maintains reliable performance in high-vibration environments and provides quick assembly in production settings. The fully threaded design maximizes surface contact for superior load distribution, preventing joint failure in structural applications.
Specification Summary & Compliance
This industrial fastener features precision 3/8"-16 UNC coarse threads with Class 3A fit for superior thread engagement and dimensional accuracy. Manufactured to ASME B18.3 standards ensuring consistent quality and interchangeability. The screw demonstrates full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming its suitability for use in regulated industries and international markets.
