S-98164A410 1/2"-13 x 1 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 from 316 stainless steel with passivated finish, ideal for harsh industrial environments
- Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B55 hardness for heavy-duty applications
- Precision thread engagement through Class 3A UNC coarse threads ensuring secure, vibration-resistant connections
- Easy installation and removal with 5/16" hex drive providing positive torque transfer without stripping
- Full-threaded design offering maximum grip length and uniform load distribution
- Compliant with major standards including ASME B18.3 for dimensional consistency and reliability
- Environmentally responsible manufacturing with RoHS 3 and REACH compliance for global supply chain compatibility
Professional Applications & Engineering Value
Engineered for demanding industrial environments, these 316 stainless steel rounded head screws provide critical corrosion resistance where exposure to chemicals, moisture, or extreme temperatures would compromise ordinary fasteners. The fully threaded UNC coarse spacing with Class 3A fit delivers superior engagement in both metallic and composite materials, preventing loosening under vibration while enabling rapid installation. The combination of 70,000 psi tensile strength and Rockwell B55 hardness ensures reliable performance in structural applications, from heavy machinery assembly to marine equipment. The passivated finish enhances surface durability while maintaining the material's inherent corrosion resistance, making these hex drive screws ideal for chemical processing, offshore operations, and food processing equipment where both strength and environmental compliance are mandatory.
Specification Summary & Compliance
This 1/2"-13 UNC threaded fastener features Class 3A thread fit precision with coarse thread spacing for optimal engagement. Manufacturing conforms to ASME B18.3 dimensional standards ensuring interchangeability and reliability. The product meets RoHS 3 (2015/863/EU) compliance for hazardous substance restriction and REACH (EC 1907/2006) requirements for chemical safety, validated through current compliance documentation.
