S-92186A398 1/2"-20 x 5" 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 from 316 stainless steel construction, ideal for harsh chemical and marine environments
- Exceptional 70,000 psi tensile strength ensures reliable performance under heavy loads and vibration
- Precision Class 2A thread fit provides consistent engagement and reduces cross-threading risks
- External hex drive design delivers maximum torque transmission for secure installations
- UNF fine threading maintains superior clamping force retention in high-vibration applications
- Partial threading configuration optimizes grip range while minimizing unthreaded shank stress
- Rockwell B70 hardness rating provides excellent wear resistance and durability
Professional Applications & Engineering Value
This 316 stainless steel hex head screw delivers critical performance advantages in demanding industrial settings where corrosion resistance and structural integrity are paramount. The combination of UNF fine threading and Class 2A thread fit ensures precise engagement in machinery, structural assemblies, and marine equipment, preventing loosening under dynamic loads. The external hex drive accommodates high-torque installation while the partial threading design concentrates clamping force where needed most. Engineered for chemical processing plants, offshore platforms, and food processing equipment, this fastener maintains integrity in acidic, chloride-rich, and temperature-fluctuating environments where ordinary fasteners would degrade prematurely.
Specification Summary & Compliance
This 5" length hex head screw features 1/2"-20 UNF fine threading with Class 2A thread fit tolerances, manufactured to ASME B18.2.1 dimensional standards. The fastener demonstrates full compliance with RoHS 3 (2015/863/EU) restrictions on hazardous substances and REACH (EC 1907/2006) regulations for chemical safety. With Rockwell B70 hardness and 70,000 psi tensile strength, this partially threaded screw meets rigorous industrial requirements for mechanical performance and environmental responsibility.
