S-92198A315 5/16"-24 x 3 1/2" ASME B18.2.1 18-8 Stainless Steel Hex Head Screws
18-8 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 18-8 stainless steel construction, ideal for harsh environments and long-term outdoor applications
- Exceptional tensile strength rated at 80,000 psi ensures reliable performance under high-stress industrial conditions
- Precision UNF fine threading provides superior vibration resistance and secure fastening in critical assemblies
- Class 2A thread fit guarantees consistent installation and interchangeability with standard components
- External hex drive design enables high-torque installation with common tools, reducing assembly time
- Partial threading configuration offers optimal grip length control for specific clamping requirements
- Full regulatory compliance with ASME B18.2.1, RoHS 3, and REACH standards for global market acceptance
Professional Applications & Engineering Value
This 18-8 stainless steel hex head screw delivers critical performance advantages in demanding industrial applications where corrosion resistance and structural integrity are paramount. The 5/16"-24 UNF fine thread configuration provides enhanced fatigue resistance in vibrating machinery, while the Rockwell B70 hardness ensures excellent wear characteristics. Engineers specify this partially threaded fastener for precise clamp length control in assembly operations, particularly in manufacturing equipment, structural frameworks, and marine applications where the combination of 80,000 psi tensile strength and corrosion resistance prevents premature failure. The external hex drive accommodates high installation torque requirements without stripping, making it ideal for maintenance-critical systems requiring periodic disassembly.
Specification Summary & Compliance
Manufactured to exacting ASME B18.2.1 dimensional standards with Class 2A thread fit tolerances for consistent performance. This 3 1/2" length screw features 5/16"-24 UNF fine threading with right-hand orientation and partial threading configuration. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations ensures suitability for global industrial markets and restricted substance requirements.
