S-92186A327 1/4"-28 x 2 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 with 316 stainless steel construction, ideal for harsh environments and chemical exposure
- Exceptional mechanical strength delivering 70,000 psi tensile strength for reliable performance in heavy-duty applications
- Precision fine threading with UNF 1/4"-28 and Class 2A fit ensures secure, vibration-resistant fastening
- Optimized load distribution through partial threading design that reduces stress concentration points
- Easy installation and removal with standard external hex drive and 7/16" head width for common tool compatibility
- Consistent hardness performance at Rockwell B70 maintains structural integrity through repeated use
- Regulatory compliance assurance meeting ASME B18.2.1 standards and environmental regulations for global applications
Professional Applications & Engineering Value
These 316 stainless steel hex head screws provide critical corrosion resistance where other fasteners fail, particularly in marine, chemical processing, and food industry applications where moisture and corrosive agents are present. The UNF fine thread configuration with Class 2A thread fit offers superior vibration resistance compared to coarse threads, making them ideal for machinery subject to constant motion or thermal cycling. The partial threading design strategically places threads where clamping force is needed most, reducing the risk of thread stripping while maintaining full shank strength. With external hex drive compatibility, maintenance teams can achieve proper torque values using standard tools, streamlining installation in confined spaces common in industrial equipment assembly.
Specification Summary & Compliance
This 1/4"-28 UNF hex head screw features precise Class 2A thread tolerances per unified thread standards with a minimum thread length of 3/4". Manufactured to ASME B18.2.1 dimensional specifications, these screws maintain consistent Rockwell B70 hardness and 70,000 psi tensile strength. Regulatory compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring suitability for international industrial markets with strict substance restrictions.
