S-92240A601 5/16"-18 x 4 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
- Exceptional corrosion resistance from 18-8 Stainless Steel construction, ideal for harsh industrial environments and outdoor applications.
- High tensile strength of 80,000 PSI provides reliable performance under heavy loads and vibration, reducing the risk of fastener failure.
- Rockwell B70 hardness ensures excellent durability and resistance to wear, extending the service life of your assemblies.
- Fully threaded UNC coarse spacing offers faster installation and superior grip in a wide range of materials.
- Class 2A thread fit guarantees consistent, free-spinning assembly with standard nuts for efficient production.
- External hex drive and hex head design allows for high-torque installation with common tools, speeding up assembly and maintenance.
- Compliance with major standards including ASME B18.2.1 ensures dimensional reliability and interchangeability.
Professional Applications & Engineering Value
This 5/16"-18 UNC hex head screw is engineered to solve critical fastening challenges in demanding sectors. The 18-8 Stainless Steel material provides excellent resistance to oxidation and chemical exposure, making it a top choice for marine equipment, food processing machinery, and structural applications where corrosion is a primary concern. The combination of 80,000 PSI tensile strength and Rockwell B70 hardness ensures the fastener maintains integrity under sustained stress and dynamic loads, preventing loosening in heavy-duty industrial assemblies. The fully threaded coarse spacing and external hex drive design facilitate quick and secure installation, reducing labor time while providing a reliable, vibration-resistant connection that upholds the integrity of your engineering projects.
Specification Summary & Compliance
This 4 1/2" hex head screw features a 5/16"-18 UNC thread with Class 2A thread fit for standard tolerance and easy assembly. It is manufactured in compliance with the ASME B18.2.1 standard for dimensional consistency. The product is also RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring it meets stringent environmental and safety regulations for use in various global markets.
